Yeah, they sometimes fail in enforcing their own stated policy.
While quite a number those things are so so, many are clear breaches of that policy (for example the Absolver one at the very start and the Cyberpunk 2077 one).
Personally in my 200+ collection of games from GOG I never had such problems, whilst my Steam collection of around 20 games has several titles with DRM to the point that one of them won't even run from Steam in Linux but the pirate version (which is cracked) runs just fine.
None the less, you make a fair point.
Personally I currently favor GOG because with their "No DRM" (except when they fail at it, as you pointed out) and downloadable offline installers, I de facto have the same ownership rights of the games I purchase as I used to have in the pre-Internet days when I bought a game CD (later, with the Internet, even physical games started having online validation), and if a different store was giving me that I would support them equally for that.
It's really about how far in practice do my ownership rights of a game go rather than store X or store Y, so stuff like blocking from playing a single player game in a machine which is offline or at any point the "game license" being revoked, the game removed from my collection and now I can't ever play it anymore (which, by the way, is also a risk in GOG if you don't download the offline installer) are big problems to me.