The only open source and DRM free way to get games is by pirating them. That’s not Valve’s fault, that’s the fault of the current copyright system. It would be nice if the Steam client was open source but that’s also about all they could do. Banning DRM on Steam would just lead to big publishers using their own launchers exclusively and indie games don’t use DRM anyway. Let’s also not forget that Valve is contributing a lot to open source projects.
LinuxMint21