The muscular elf in BG3 (forgot his name), would actually legit make sense in forgotten realms.
Come to think of it, subrace exception(s) aside, elves in general aren't feeble; if anything, it appears that elves are stronger than the baseline race (i.e., human). How? Well, consider this: elves tend to be both shorter and slimmer than humans, yet they do not suffer a penalty to Strength.
Oh that's a good one, never thought about the attribute layout.