Thanks a lot for the detailed response.
The game is going to be a low poly one, however, the textures and models should always represent a semi-realistic feel rather than a comical feel.
I’ll check how bones scaling work. The morph channeling seems complicated for my goal but it seems very interesting and I’ll of course check it out too if it can be used with low poly assets.
And I didn’t think of normal maps at all, I’ll definitely look into that one too. Maybe 2 different blends where fully ripped characters could have a shredded look with no fat while a fat guy with lots of muscles can also have a different muscle definition blending between fat and muscle normal maps o.O