Yeah, would love to see that game here too. :)

Well, it's just a thought of mine without any hard evidence backing it, those (Sonic and SMT) are two of their most profitable franchises and I'd say Sega isn't as keen on removing the DRM from those games than the Yakuza series for example or Alien: Isolation. Persona 4 Golden is still infested with Denuvo to this day. Just like Persona 3 Portable, Persona 5 Royal, Strikers and Tactica.

What's your most wanted title btw?

Sega does trot Sonic out all over the place, so who knows. SMT and Persona though, those could be a problem, and not just because because of Sega, but also the absolute clown shoes that is Atlus.

Also my all-time most wanted game is another Platinum game, Metal Gear Rising: Revengeance. From Sega specifically though, my most wanted would be Sonic Mania.

Excellent choice. There is even an open source engine replacement.

(edit: I missed some discussion above)
Is there a pattern similar to Square Enix where most of the SEGA games we've gotten have been from "SEGA Europe" instead of "SEGA Japan", if divisions like that exist (or something along those lines)? Or some pattern that explains what we've gotten so far and haven't gotten? Maybe GOG doesn't want to bother with old Mega Drive and Genesis titles even though I assume those would be very easy to bring (assuming there's a situation like "it's very hard to get SEGA and all AAA publishers' attention since we're so small / make such small money compared to what they want, so we have to use what time we have with them wisely".

Some of them were fixed (broken UI and in-game-reports if not in Galaxy). Others are not (online play -- which is basically non-existent even if you were weird and wanted it) is required to unlock things for a single-player game.

Good Sega games but it would be great and wish there were more Sega titles in the future.

Good choice.
Haven't played the game since release, but I still listen to the soundtrack from time to time. :)

Much thanks for the answer.

Any recommendations on the dlc? I've heard via posts on Steam that Speedy Recovery causes a number of bugs, so i'm a bit afraid of buying that one.