The same thing has been happening to me as is with Justreich. I am also GOG. I've also tried every possible fix I can, short of diving into the code of the game and fixing it myself, which I of course can't do.
Also, apparently the download section on GOG for Origins for installing the game without GOG Galaxy is still only just Fleet Battles Beta 2. As is the entire store page for Origins on GOG seemingly quite outdated as well.
Why is the GOG side of things looking so neglected? Genuinely curious here.
Anyway, would really love and appreciate a fix for this