this post was submitted on 10 Nov 2025
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This is only relevant for people exclusively running open source games from the distro's repository.
Steam games (incl. the Windows games on top of Proton) run inside Steam Linux Runtime, a container based on Debian 11 that is identical on every distribution. Use whatever distribution you like but the optimizations of CachyOS are mostly pointless.
Though I assume performance can still vary by host kernel, right?
Sure. That's why I wrote "mostly pointless" but the runtime stack is self-contained in Steam and proprietary games are compiled by the developer anyway. There are limits to what CachyOS/Gentoo/... can do.