Hopefully GDM can still run X11 Desktops that’s what I care the most

Same

No Wine/Proton cannot translate calls that run too deep into the Kernel

For anything outside of steam,epic etc you can use Heroic Games launcher (i personally use it for Epic Games,itch.io and games outside of Steam)
Ik it’s a Epic Games,GOG and Amazon Games launcher but it works for Games outside of any store

Also GNOME shows this campaign on their website

I stick to stuff like Pacman and paru

Yk what I LOVE THAT, Why i liked linux mint when i was new.

Also pacman and the aur

Another reason why am using cachyos

Just dual boot