https://www.youtube.com/watch?v=UqLI1xKc-L4
This is why autists are fantastic, been curious about this for awhile and yeah, any of us who give a shit about the state of games should not be installing modern multiplayer games at all at this rate. I would not be shocked if even Valve get desperate about the cheaters in their games and they go all in on anti-cheat spyware. Alternatively they may end up officially partnering with face-it.
TLDR: It's worth than anyone thinks, this video gives context and detail.
They knew how many were playing on linux and decided it wasn't worth the effort. Hell even the macOS client is stuck in support limbo(macOS 12,13 along with ARM macs are not "supported" and 14 is not even mentioned on the page) and I expect them to completely ditch it when Apple drops x86 support