I worry that this also has a rose tinted glasses effect on early user reviews. The only people leaving reviews for the first few days are going to be the people already invested enough to pay extra for early access, and they may be more willing to overlook issues with the game.

Same. Minigalaxy bridges the gap a little, but it’s missing critical features that only GOG could implement. GOG have had Linux gamers pestering them for Galaxy on Linux forever. Seems like a natural fit, but they’ve ignored it, teased that it’s happening, ignored it again… I eventually gave up and went all-in on Steam. Valve have done everything they can to make Linux a class-A member of their ecosystem, so that’s where my business goes.