waltc: People quickly forget that Galaxy is optional, so there goes the DRM argument. I swear, I've heard people state that "Internet access required for Internet multiplayer games" is some sort of DRM...;) Incredible. Also, the reason the manual files take longer to get updated is simply because GOG assembles the manual files from the Galaxy updates the developers provide.
It's always been that way. Before Galaxy left beta status, people were always complaining that GOG manual update files *always* appeared a couple of days after patches were published on Steam--it was because GOG has to do the backup file patches itself--developers just sent in the base patches.
So...yawn...no DRM...no conspiracy. It's amazing how many people don't understand how things work.
Galaxy is optional, so the existence of FULLY UPDATED offline installers which run without Galaxy means that GOG still has a valid claim to providing fully DRM-free access to the games which run without Galaxy. There are a growing number of games available on GOG with limitations or missing elements when played outside of Galaxy, EVEN while playing with internet access, as well as some examples posted in this thread of games which are NOT keeping their non-Galaxy versions properly up to date.
Games which require online access to run AND require an account on that online service AND require either proof of purchase as part of the account or to be linked to a platform account with proof of purchase, have DRM inherent in that online functionality. Similarly, games for which Galaxy is required in order to access the game, or to access certain online features because of the game's online funcitonality being bound to the Galaxy client's connection to your GOG account (which is used to verify ownership of the game) are using Galaxy as DRM.
Games which require Galaxy in this manner, or require an online account sign in for access to the game, are using DRM regardless of anyone trying to pretend otherwise. That is what the phrase "DRM" actually means. This doesn't make any such forms of DRM a "conspiracy" or even a bad thing - there are a lot of benefits to managing access to games in such a way. It does make it a violation of a promise that the game is "DRM-free" though, regardless of any benefits which come with the DRM.
And in case it's not clear, it is ALSO possible to have an online game which only works while you're online, and even for a single player always-online game, without that requirement acting as DRM. If you can access the game servers without an account, or if you need a free account but that account doesn't need a record (or llink to an account with a record) of purchase to give access to the game, then that isn't DRM. It's possible to make a game which doesn't require any login to GOG or any link to your GOG account to have functional access to game servers.
For a single player game, this might track metrics about the community and allow users to view interesting statistics about how people progress through the game, popular story paths within it, the scale of various player worlds in a builder game or a procedurally-generating open world environment, and various other things which don't have any unique identifiers being provided to anyone at any step of the way (beyond your IP address and timestamp passing through the server and potentially even those details not being logged). This functionality could be required purely for the purpose of ensuring that the data tracking is a complete record of everyone playing (or at least everyone who didn't modify the game files to prevent it so they could have their offline version). I doubt anyone would actually do this, but it would be possible.
Similarly, and much more believably, it's possible to make a game where you can launch the game from a non-Galaxy installer or from Galaxy itself, and have a separate "log in or sign up" page as the game opens, enter or create your username and password (which may or may not match your credentials on GOG) and start playing with no checking of whether or not you purchased the game. It gives you a free account for online play, even if you're not a legitimate buyer of the game, just because you had access to a device with the game installed. Such a game would be an online game with no DRM from its online functionality, and could potentially even track persistent player records on the server using the username and password - but because it's not managing the company's rights to the digital product in its operation, it isn't DRM. This also isn't done very often in modern gaming, because when you already have the online connectivity, requiring the player to link to a service which verifies the legitimacy of the purchase is so easy it's hard NOT to justify doing so.
The "it's already an online game so might as well" kind of DRM, if not implemented in an aggressive or problematic way, can often be an entirely reasonable and sensible measure to reduce piracy without causing unnecessary problems for players. That isn't the motivating factor behind players wanting DRM-free games, but it DOES make any game which uses this kind of DRM sill a technical violation of any company's claims to being "DRM-free" if it's sold through a storefront which promises that.