We’re also committing to supporting Vortex on SteamOS. We’ll be targeting vanilla Steam hardware like the Steam Deck and Steam Machine. We won’t be officially supporting any other configurations, but as Vortex is an open source project community developers will be free to extend support for their preferred Linux distros as they please.
I don’t think this works anymore, tried it with Silksong to play on the launch version.
It does if you’re launching through something else so steam doesn’t realize you’re launching it, like don’t directly hit play on the actual game.