> This OTOH does not exist. Linux gamers are 1% of either the gaming market or the desktop computing market. All gamers either dual boot windows...or android. Even for those who game on Linux, they do it on an abstraction layer like Wine. Which is what Valve maintains

First off, 1.13% of Steam users are on Linux [1], and given how many users Steam has, just 1% of that population should be able to make quite a fuss. Secondly, Valve does need those containerized runtimes even if most games run on Proton, since Proton also depends on those libraries, so not sure why you're dismissive...

[1]: https://www.phoronix.com/scan.php?page=news_item&px=Steam-Li...