sanscript: Not saying it's all bad, but as Linko is onto, it's like they couldn't figure out exactly which way they wanted to go.
I agree. There's tons of good ideas, but a lot isn't really... polished and adhering to standards which had been established for a reason.
Like what MS did with Win8 and 10, only that MS has the power to make standards (even if I personally find them atrocious, and many UI professionals agree with me).
It's kind of weird. You'd think GOG aiming to create "the client to rule them all", which is, with the integrations, clearly the mission statement, would put more care into a really intuitive interface that puts "ease of use" first, which means first and foremost adhering to established ways to do simple things - like maximising or closing the window. You just don't put those icons a few pixels off, because no other application does that, and it's irritating if you do.
Also stuff like proper tag management - you want to delete a tag (from all games)? Can't do. Bulk assign tags to games? Can't do. Show all games which have tag A and B? Can't do.
Or basic shop functions like "what DLC am I missing" (Galaxy 1 knew that!). Can't do.
The basic function set: Installing, updating, launching games - that works fine. The bookmark system has a few nice ideas. List configuration - great. And yeah, I find it mostly convenient to use, if a bit bloated. But it obviously still needs a lot of work, and to force all users from the stable and (in comparison) slim Galaxy 1 client to the Galaxy 2 beta was a dick move and a mistake in my opinion.