That was half the reason I upgraded. I don't know if my old box would've been compatible (probably was), but I wanted it off Microsoft territory so bad and heating about Copilot sent shivers all over my spine.

I've never heard of installing any new OS without having to back stuff up. That's just wishful lazy thinking lol.

You probably won't have to do anything manually about Wine. Steam has Proton built in and it works great. As others always mention, check ProtonDB.com for user reports on how a specific game will work out.

I haven't run into any problems in my library, but I honestly haven't installed a ton of games.

I've used Heroic Games Launcher and Lutris for some other launchers (like Battle.net or Epic Games), and those have been a little hit or miss, but I think the main problem is something I'm missing. Not a huge priority but I'm still working on it occasionally.

I haven't heard anyone call or 3D card since the 90s. They're video cards or GPUs these days man. AMD has open source drivers that work just fine with Linux and should work just the same as the Windows version I believe.

Nvidia has open source ones, but they seem to be pretty terrible compared to the closed source ones. I had one issue with them last week but I think that was more related to KDE than it was the drivers' fault.

I don't really have any fancy hardware to describe how easy that was to get to work. Just a mouse, kb, headset(with mic) all of which worked fine without doing anything. I have a physical dongle for the controller, so I had to get a driver for that so I didn't have to use a Bluetooth connection (pretty shitty comparatively speaking) or gasp plug it in. Had a few issues with it for a while, there was an updated version under a new name and such but it all works now. Just turn the controller on and it's working instantly (unless I forget to charge it lol).