Again, 450 MILLION guns. You can ban them all today, even if everyone agreed, we would be pulling guns out of cellers and closets for the next 100 years. "Ban them all" is not a thing you can just do. That would require a constitutional amendment, one that basically one supports, so good luck with that.
"Anywhere a kid might go" is literally every public place. Concealed carry is not outright banned in any state. I support pretty heavy requirements for concealed carry, but even an outright ban would not prevent this. Even so, most states have very loose requirements (or none at all) and there's basically no political will to change that.
Teach the kids about guns. This isn't even a political position, this is a very straightforward policy to mitigate risks that presently exist and are not going away any time soon.
I'm running a 4070 super on my setup with cachyos with zero issues. I never had to do any special setup or anything. I think when I first installed, I was running off the displayport on my motherboard to be safe, but if I remember correctly, the OS detected my Nvidia card and installed the driver automatically. (That or I selected that I wanted Nvidia drivers during the install, I can't remember which.) Switched the cable over to the card, no issues since.
Everyone complains about Nvidia support on Linux but it's come a long long way the last few years and it's honestly just as easy or easier than windows now.