Linux

Check out Framework if you haven't already! https://frame.work/linux

They're designed to be upgraded and repaired over time so they're super modular. You can also save some money if you're not afraid to put it together yourself.

Lenovo is renowned for their excellent linux compatibility. I'm sure you'll get a bunch of proponents here saying the same.

BUT, oh boy. Don't get me started...

Too late. Having used various models of thinkpads in recent years, their inconsistent keyboard layouts will drive you absolutely insane. I swear, at this point they're just fucking with us.

I've got one in pieces somewhere, that has/had the ~ key next to the FN key on the bottom row! How the fuck are you supposed to use Linux if you're ~ key is down there? It's fucking stupid.

Not to mention their keys have a tendency to break off with just the mildest of fist slams.

AND the latest work-issued recent model is fucking with us again! It has the FN key ON THE LEFT SIDE of the Ctrl key on the left. Who does that? The Ctrl is always the left-most bottom key. Now, every time I fucking go to press Ctrl+something, I end up hitting FN instead.

Fucking morons! At this rate this laptop will also end up in pieces.

So, tldr; Stay the fuck away from Lenovo if you want to use Linux and not end up in prison for vehicular homicide.

Used Thinkpad from eBay is your best bet to start imo.

I'm relatively happy with my System76, but based on your needs you could get a lot of value from a $500 used ThinkPad on Ebay.

I bought a DIY Edition Framework Laptop 13 with an i5 1240p for about $1050 after buying my RAM and SSD on their own. This is the best option if you're into modularity and upgradability and second only to buying used when it comes to environmental friendliness (in my opinion). Battery life isn't anything to write home about at least on 12th Intel though, supposedly 13th gen Intel CPUs do better

Otherwise, System76, Tuxedo Computers, and Laptop with Linux are probably good options if you want Linux pre-installed. All 3 of those take Clevo laptops and make them their own.

Starlabs also looks like an interesting option, but I believe the Starlite is the only option under $1000 USD. As far as I know, they're the only company that makes their own laptop chases from scratch for Linux.

Links:

Framework

Starlabs

System 76

Laptop with Linux

Tuxedo

You got all the good infos already, but I'll stress:

1. Get Linux preinstalled from a reputable vendor. Linux works on most devices really; but when buying new, you don't want the hassle to even think about drivers.
2. If you cannot buy from a Linux-friendly vendor, buy an older model that's VERY popular with Linux users (like the stereotypical thinkpad). Again, most devices will work, but you don't want the hassle.
3. Intel everything just works out-of-the-box with Open Source drivers and is good enough for work. I'm not aware of the current state of AMD, nvidia drivers.
4. Choose a popular generic purpose distro. They are all good (enough) and should work out of the box. Popular for end users are Ubuntu (although hated by a vocal group) and related ones such Debian or PopOS; maybe Mint. I'd put Fedora/RedHat and Suse on the same level (but I wouldn't know since I settled on Debian/Ubuntu long ago). Then, Arch adresses a different clientele who wants to tinker with there system; not my choice if you want a computer that just works, but great community. Anything else probably has too small of a user group unless it's popular with your friends or line of work
5. Treat it like a Mac. It's different.

I'm a fan of Framework laptops. They have given people the option to upgrade several motherboards by Intel and released an AMD version to boot. I don't think there's ever been a manufacturer that offered three generations of motherboards on the same chassis. The swappable ports are kind of neat, you can choose which ones you want to use

The 13" is already on sale with a 16" coming later this year

I’d say Framework, but I don’t think they have stuff under $1000 unfortunately.

If you're looking for a cheap but solid laptop, you can get some pretty good deals on Dell Refurbished. Click on Laptops at the top, then look for the 50% off codes at the top of the page.

I'm on my second Dell XPS 13 Developer laptop which comes with Ubuntu pre installed. I loved the first one but played too much Minecraft and wore out a couple of keys. I had it long enough that decent replacement keyboards were hard to find so I got a new laptop from the same line. I love the second one even more. My brother, also a Linux-using software professional, made the initial recommendation, so there is at least one other person who liked this line.

I've installed Linux on two Windows laptops:

• A 2019 Lenovo Yoga with an Intel CPU and Nvidia GPU. Kubuntu worked without any issue, aside from the Nvidia drivers being finicky. It also has a touchscreen with pen support, which works really well.
• A 2022 Asus Vivobook with an AMD CPU. Tried Fedora for this one and had tons of driver issues at first, but they eventually got patched.

So, I'd say that buying a Windows laptop and installing Linux on it is certainly viable, as long as you're ready to do some amount of troubleshooting or waiting for driver updates. Oh, and keeping the Windows partition somehow (dual booting or w/e) can be handy for firmware updates.

If you can you should try to savve up for a framework laptop

System 76 customer here. I just replaced my 2011 system 76 lemur with a new lemur. I have Ubuntu installed on both and have never tried pop os. I was very happy with that laptop and the company in general. It actually still runs okay. I did replace the battery after about 5 or 6 years. I'm thinking of trying out nixos on it.

My guilty reason for upgrading was I wanted to play dwarf fortress at more than 5 fps...

If I'd buy a new laptop these days I'd go with a framework. Other than that, buying a refurbished ThinkPad is always a great option and they generally run really good with Linux. As for support I wouldn't be too afraid, almost all hardware is supported these days as long as it's not something really obscure. The main thing worth checking is probably the WiFi card, I heard there are some that are a pain to set up, but I never ran into that. That being said most manufacturers won't officially support Linux and if they do they'll only support fedora or Ubuntu (speaking about big manufacturers, ofc there's system76 and stuff), but as I said I don't think I've encountered a laptop that straight up wasn't able to run Linux. Also if possible avoid Nvidia GPUs, they work, but can be a pain with drivers breaking on the regular

If your on a budget, an older Thinkpad is a good choice. I picked up a X220 with a charger and spare battery off of Craiglist a year ago for $60.

Ended up going with Coreboot with a SeaBIOS payload and Debian OS.

I'm fairly new to Linux, but I quickly learned that AMD based stuff is better for Linux.

I bought a new thinkpad t14 for $900. I have arch and windows 10 dual booted and it's doing great

Everyone's made good suggestions, but I wanted to throw out there that I just recently learned Kubuntu actually has been making its own line of custom-made laptops for a while, called Focus. There's a few different models, and IIRC one or two configurations are below $1000. You'll definitely save a buck by going with Windows-first options, but if you want to support Linux that'd be one way of doing it.

Im happy with my ROG Zephyrus G14, which I only chose because of decent linux compatibility and a sale at Best Buy.

I would say when judging the price of a laptop, whether it is Windows focused or Linux focused, make your decision based off of mainly hardware specs (and that hardwares linux compatibility). For example (assuming same price), if a Windows laptop has a great AMD CPU and GPU, I would take that over a Linux laptop with an equivalent CPU but an NVIDIA GPU.

My best advice is to read posts / watch videos of people using / installing / reviewing Linux on said hardware before you buy it. For instance, Asus ROG laptops (like I have) require a program called asusctl to control certain aspects of the machine that are usually controlled by Asus's proprietary software. I would not have known this if not for researching beforehand.

EDIT: I agree with another comment, used Thinkpads are awesome and usually old enough that there will be next to no compatibility issues with Linux. Also, they're tanks!

If you're thinking of getting one, i personally would recommend getting one from https://www.tuxedocomputers.com/. Extremely good quality and a really clean distro with Tuxedo OS 2 although you are able to install on it whatever you want.

Maybe a slightly controversial stance, but consider straight Debian. With flatpak support in both Plasma and Gnome being stellar, you can have up-to-date apps with a rock solid base that runs on almost anything.

I've been pleased with using refurbished Thinkpads off amazon. They're pretty well supported except for maybe like the fingerprint reader which I never cared about anyway.

I have a Darter from System 76 with Pop!_OS as my personal laptop that I code on and I absolutely love it. It runs extremely smoothly and I've not had any crashes with it.

I also have a Lemur from them with Ubuntu for work and it's kinda meh. Is difficult to say what causes the issues I have. It may just be the corporate tools but I end up having hard locks that require a reboot.

If you go with them I strongly suggest Pop! The distro is built for their hardware and works really well.

I want a system76 pangolin but I'm broke.

If you're in Europe, I can recommend Tuxedo Computers. They specialise in making Linux based computers, and are highly configurable.