If you bought the GOG BG2 classic (complete), and have the original NON EE Windows files of the game, it installs fine with the latest Wineskin version on OSX Monterey (2021 M1 max)!

Downloaded the winery, install engine WS11WineCX64bit , made a wrapper and installed.
Why? Because it looks so much better than the EE edition. And thats the point of GOG, playing the originals.

One bug I am trying to figure out. All the movies play extremely slowly, like 1 FPS slow.

Can I use it with a (conservatively) modded BG1 classic? Widescreen mod seems like a possible problem. BTW, what WineTweaks did you use? What wrapper config? I'm on Sonoma BTW.

Edit: I managed to run the classic BG1 through WineSkin but it hangs after the intro movie which is, like you said, about 1 FPS fast. I click to skip it and the game just hangs.