Bottles itself is great, but your running the windows version of GOG Galaxy in Bottles. So it can be a bit fussy at times.
Heroic runs on Linux. I have it from Flatpak. Linking it to my GOG account was easy. The UI is a little better to me and definitely more responsive. I can also pick custom versions of WINE or Proton on a game by game basis as well. With Bottles everything runs with a single runner. Hasn’t been a problem yet, but it’s a nice option.
Yes, wine or proton by version. But also, gives Epic, GOG and Amazon Prime games in one launcher vs Galaxy via wine bottle on its own.
Not sure if Lutris has this too or not. Seems like it might.
I know Lutris does GOG and Humble, but I’m not sure about Epic or Prime. I haven’t used Lutris in a couple of years.