No idea about AMD but I have nvidia 3070 and works just fine. I use gnome for gaming and kde works well too. No settings changed, simple archinstall script with nvidia proprietary drivers and steam.
I’m not sure why but xfce multi screen gaming is problematic, haven’t dived into it.
Not saying don’t get AMD but nvidia has horrible reputation which is kinda unfair nowadays. Their driver has improved a lot.
How did they fit in so many ads?
Not to be “that guy”, but you can use a gui file manager to access your files the same way you do so in windows. Most of them support ssh keys as well. If you’d like to check out the cli stuff, nnn or ranger can be useful. Something like midnight as abckup is good too. Definitely install fzf on both your vps and local machine. You can also go over board and run xorg over ssh and run a small window manager, maybe awesomewm or even xfce (not that small but works fine).
I’m sorry for late reply didn’t get the notification. Does Xorg struggle with multi monitor gaming? I use awesomewm on top of xfce and don’t want to abandon it. If that’s the case it sucks. Any ideas?