/diy/ - Do It Yourself

>>2671899
>wtf happened here and how do I fix it?

garages are often left unfinished to one degree or another. That's what you said, mud covering the sill plate and is not an issue, just some drywall guy doing something pointless. To "fix" it, you trim it out with baseboard if you don't like the way it looks, but structurally it looks fine.