Why is Flatpak Steam worse for performance? I've been using it for years, seemingly better performance than Windows on the same system. Something inherent about Flatpak?
If you’re serious about gaming I recommend KDE as your desktop environment, plays nicer with HDR, VRR and fractional scaling than Gnome.
Mm, I don't think I'd be willing to sacrifice my Niri workflow. Niri also supports fractional scaling and VRR, but not yet HDR, which I can live without until it's implemented. 😁