>Steam installation with pretty much zero performance overhead, if you install it through Flatpak.

In reality that isn't true. Flatpak steam runs like poo for a lot of people. Really, flatpak should be avoided if there are other installation methods, in general.

Flatpak works fine for me on Arch. I use it mainly to avoid needing 32bit libs installed. Once steam goes 64 I’ll go native.