Last couple of days I been finding the settings screen randomly open, other times gog galaxy just restart? when I'm in the middle of a game pushing the client on top of the game.
I use 2.0.41 beta version

This is happening to me all the time too. I'm on 2.0.43. I didn't think much of it but its happening all the time, just a pain.

The only time it does this for me is if I pop my PC into sleep while Galaxy is running. Upon waking my PC, the settings screen opens, but that's it. I'm running 2.0.43.71.

I think I got that peculiarity because Galaxy drops connection to Ubisoft Connect and opened the settings window for some reason.. Since I have 2-factor sign in to Ubisoft Connect it couldn't resolve the problem either. I "solved" my problem by disconnecting Ubisoft Connect. I don't currently play any Ubi games anyway
Seems to work..