SirPrimalform: ...
Disappointingly I ended up buying AV on the Switch and the controls are kind of screwed up. They have B as confirm and A as cancel in the menus. I reported this problem to them (and it took months to actually get a reply) and their response was along the lines of "It's too hard/not worth fixing".
I, too, was tired of waiting for it on GOG so I got it on the PS4. The controls over there were fine, although I can understand your frustration since Nintendo kind of always had these things in reverse (the A B buttons in menus, if I am not wrong even since the NES).
Anyway, I enjoyed the game very much and it is definitely a Metroid clone (as in extraordinary amount of similarities).
Ironically, I played Super Metroid after Axiom Verge. Also, Super Metroid allows you to rebind all keys (no intention to pour salt in the wound SirPrimalform! - edit: sorry, please ignore this, I forgot you were talking only about menus).
edit: Forgot to mention, Tom Happ now focuses only on Switch for the main AV2 release platform with other platforms to be announced later. So, even if there is a tiny extremely ultra small possibility for it to ever appear on GOG, it will be a considerable delay.