I had a huge amount of trouble publishing to M1, and eventually gave up. I think something in my game causes incompatibilities with M1 but no idea what so I too was hoping Rosetta would save it like you said, but I guess not =/
Unfortunately not. The game was designed in linear color space, and webgl builds only support gamma. I tried but everything looked wrong, so I'd have to go and tweak the graphics in every room.
