GOG is DRM-free indeed. Others like MS Store and Epic? Lol, they aren't better than Steam in regards to DRM.

I prefer GOG, but it's cool that Valve are advancing Linux gaming.

Still hoping for an official GOG Linux client

I use Heroic on my Steam Deck and System76 machine with GOG, works beautifully.

https://heroicgameslauncher.com/

Interestingly enough TFA doesn't complain about DRM at all, it's quite the opposite actually, they complain that Steam does more than DRM when according to them game marketplaces should not be doing anything apart from DRM.