I do free infinite troubleshooting on matrix and specialize in this exact situation, feel free to message me. I recommend something based on immutable fedora because it’s breakage resistant (immutable means the core system is read only and updates all at once on reboot) and fedora because it’s very up to date but still stable, try aurora (it’s fedora immutable with some small improvements)

do kde, always kde or gnome unless you know what you’re doing, but kde is better