So I'm quite new to GOG, making the full switch quite recently and I'm learning as I get along. And one thing that I have noticed is that a lot of developers don't release content on GOG at the same time (if at all) as on steam.
Now I've got a bit of a theory of why this might be case, and I might be wrong. I think this is done purposefully to attract more people to steam. Like - we published the game on gog, we made them happy, but in reality we want to have our game controled by DRM and ensure that you play it when and how we want you to.
I suppose that's possible, but unlikely.
If they want DRM, they wouldn't release DRM-free at all.
As far as making Steam version more attractive (for other reasons than DRM), that can be possible in some cases.
It all comes down to how the publishers view what the customers value. If they think that DRM-free is an added value as such, they might feel that it's an "extra feature" in itself. If they think that the biggest store (Steam) is an added value as such, they might feel that it's necessary to compensate that with some extra goodies in other stores. There are other ways to approach it too.
In the end, the answer can be very pragmatic. For instance, if in order to release the soundtrack they (publisher and/or store) need to negotiate with the composer, if it has already been done once, it can simply be that some involved party doesn't care to go through it all over again. There are some indications which point to this, such as some soundtracks which GOG has removed.
In Disco Elysium's case it's even more strange since the soundtrack has been available on British Sea Power's bandcamp since release back in October last year, and you can purchase what essentially amounts to a DRM-free offline copy of the soundtrack (in various file formats) from there.
my name is coole catte: Swedrami:
Wait... if you buy a soundtrack on Steam you don't get to download the files? That's nuts. I thought music downloads were one of the areas where DRM had died out (aside from streaming obviously).
No idea how it exactly works, but I'm relatively sure about this integrated player solution.
Which may or may not be the only way of accessing/listening to soundtracks purchased over there?
In all cases that I'm aware of, soundtracks bought on Steam appear as an extra folder in the installation files. I don't pretend to be an expert about this issue though.