PaloPLAYER: I see people say this all the time, but what are some actual reasons for this ?
Corporations like to shift to walled garden models; Galaxy provides the framework for that to be possible. While currently GOG has not gone (fully*) in that direction, the temptation is far, far too great. It's not worth playing a game of chicken here. We have already seen more and more content locked behind Galaxy over the years,
not less. Do you think GOG (or for that matter Io Interactive) would have ever even tried to release Hitman Game of the Year in the unacceptable state they did, were it not for years of conditioning this audience to just accept Galaxy? Clearly, the thought process had to be something along the lines of "enough users will be okay with this". No users should be okay with it. Can you imagine a release like Hitman Game of the Year even being attempted in the pre-Galaxy era of GOG? I can't, but I sure would like to go back to those times of no tolerance for DRM, online requirements, et al.
The risk if the biggest DRM-free store goes in a direction further away from DRM-free far outweighs the benefits of having cloud saves or achievements. Consider that, while other DRM-free stores do exist, none get the releases on the scale that GOG does, both in quantity and (especially) quality. If GOG becomes another "Humble Bundle," there is a very real possibility we will never see DRM-free releases like Dino Crisis, Middle Earth: Shadow of Mordor, or Skyrim ever again. It is already very difficult to get such releases here, and GOG deserves credit that they have been able to do so. That said, I have long argued that Galaxy in the way it is used on this store (with various content, modes, etc locked behind it) weakens GOG's leverage in negotiation. How can GOG tell a publisher "no DRM" when the publisher can reply "why not? You even have content in flagship CDPR games locked behind MyRewards".
*I say GOG has not gone "fully" in that direction to indicate they have already, in my opinion, gone too far in terms of locking content, modes, etc behind a "Galaxy wall" in which there is no other option but to use this "optional" client.