>>For example, with GOG I download the games I buy and there's no way they can enable DRM on the copies I made.
There is no way for Steam to enable DRM on a copy of a game you made after you downloaded it from Steam. It's a weird argument to use really - once you copied the data elsewhere neither platform can do anything with it.
There are a few DRM-free Steam games but most devs on Steam enable the DRM. This isn't Steam's fault but Steam is holding the reins of that access. It works great now, so smooth you can't tell there's DRM. But at the end of the day most of my collection is at the whims of Valve.
I'm personally concerned about what happens when Gabe retires or shuffles off this mortal coil, and his replacement comes with a "fresh" revenue idea. He's a one of a kind visionary leader, it's not a sure thing that his successor is the same. I've been baited and switched so many times in the past few decades that it's hard to blindly trust any company for more than the very immediate future.
>I'm personally concerned about what happens when Gabe retires
From the couple documentaries I have seen over the years it already seems like he is basically retired, only working on things he is interested in like the brain interface stuff. I think as long as valve stays a private company the enshitification will be limited.
If the DRM is enabled, the game does a simple "Is the game available in the user's library?" and steams says yes or no.
If the game didn't have DRM enabled, no check is made. Copy the game folder elsewhere, without steam install and it should launch.
Devs can enable the DRM afterward, but your copy won't be locked.
But even then, if valve goes bad guy, the DRM is simple enough to be broken, and there is no double check or something preventing you from playing (unlike Denuvo which encrypts the game and has multiple separate checks for the DRM).
Yes (that's the point of a DRM), but like I said, the DRM is easily broken. Some games can also still use steam features when cracked (like joining lobbies, inviting friends, etc), and it's the same "crack" for every game (not withstanding other DRM the game may have).
With Valve, I'm more concerned of not being able to download the games if they go under, than the DRM on the games I have. Over time, the Steam DRM has also been more permissive than before, as I can now play my "family's" games and they can play mine.
Part of the apparently forgotten but huge amount of work that went into making digital storefront for games that people trust to work was that Valve publicly talked about verifying things such as a procedure to globally strip DRM from all games, in case Steam was to cease operations.
There is no way for Steam to enable DRM on a copy of a game you made after you downloaded it from Steam. It's a weird argument to use really - once you copied the data elsewhere neither platform can do anything with it.