Steam client version (build number or date): latest up-to-date client
Distribution (e.g. Ubuntu): Debian 9 'stretch' x86_64
Opted into Steam client beta?: Yes
Have you checked for system updates?: Yes
Proton compatible lists S.T.A.L.K.E.R. Shadow of Chernobyl as tested, but I still can't play it, because Play button is unavailable unless I enable Proton for all games.
I suspect this is because I've probably bought a bundle pack of STALKER game series on Steam. steam store page of that bundle
My S.T.A.L.K.E.R.-SoC game has gameid 4830, but game's store page has id 4500.
This issue probably affects (will affect) other games that come in special depots or bundles.
Your system information
Proton compatible lists S.T.A.L.K.E.R. Shadow of Chernobyl as tested, but I still can't play it, because Play button is unavailable unless I enable Proton for all games.
I suspect this is because I've probably bought a bundle pack of STALKER game series on Steam. steam store page of that bundle
My S.T.A.L.K.E.R.-SoC game has gameid 4830, but game's store page has id 4500.
This issue probably affects (will affect) other games that come in special depots or bundles.