The issue that people have been having with the tavern brawler feat in BG3 is the exact reason why the feat does not affect either your martial arts or wildshapes in base 5e. We already went through something like this in past editions with the Druid/Monk/Shifter powerhouse builds.
Larian changed it from the
original feat both for technical reasons, and because they can't let go of the cheese for any reason, and made it affect wildshapes on purpose. It's unfortunately intended, but that doesn't mean it's good. I'd like to see it reigned in.
