I am sure that all this complains about games not being updated as fast on GoG as on Steam, and thinks like a missing Linux-Version are not GoGs fault at all but related to the software-studios/developers - even if there may should be some latency until they are approved from GoG, in comparison to Steam, if at all.
Gamers should show a bit of solidarity with GoG. GoG is much smaller then Steam and has far less sales then Steam. You can see that comparing the amount of reviews for games.
I never understood that gamers would go to Steam after complaining for over two decades about DRM.
Well, back to topic: I hope the Devs will put the linux version in soon!