It's a different layer of the internet. It's really old, they used to post news there, now they post everything. You only download, do not upload, pay for privacy, have super high speeds, everything you see is down loadable as it's on servers and not from seeders.

Pay for a provider, the best one is Eweka. They have the servers, whatever you search you need to download from them (they have all the packages). Eweka has the longest retention, meaning the files are on their servers the longest (longer than 3000+ days I think). Get a download client, the best one imo is Sabnzbd Find indexers like Drunkenslug. And there are search engines and communities, and search applications like spotnet and spotlite. There are many communities out there, some are focused on media from a certain country for example, like only German spoken or subtitled content. Everything you download has been uploaded by someone, so it's very much community driven but you're not dependant on people their upload speed or online status.

Here's a beginners guide.

It also works flawlessly with Sonarr and Radarr to automatically download movies and series as soon as they come out in the quality and language you prefer. Just search for guides to set it up. It also works with torrents, but not as good as with usenet.