I am a strong linux supporter and I too do not like what proton is doing to games. A few years ago there were many significant games coming out with native linux capacity (MineCraft, KSP, Factorio). Then proton dropped. Now, rather than support linux natively, even the most pro-linux developers are just expecting that their windows version will run under proton. And those who are running games under proton are essentially cut-off from customer support. I've had a few games where a patch suddenly stopped them working under proton. I have no recourse in such situations. That is not a good trend.

Just ignore the guy, it's essentially the reverse of "I run Arch BTW". Not just about Valve or Proton, but about pretty much every FOSS technology that's celebrated here.

Because people love to celebrate Proton as if it was doing anything for GNU/Linux games, when in reality is another OS/2 take on Windows.