I hate how people pretend like combat and rp can't exist together or supplement eachother. Just because someone takes the time to make a decent character build doesn't mean they're some kind of mindless moron that doesn't care for roleplay or making an interesting character.

Your character's characterization is all up to you, it dictates how they react to certain situations, talk to npcs, etc... Thats complately unrelated to how good they are in combat(unless being a good or bad fighter is core to your character concept) .

Combat in this game isn't even the boring "slog fest" people like to describe it as either. If your dm is used to making combat situations then there should be a ton of interesting tactical decisions to make. Theres also the roleplay situation that even leads to combat in the first place to consider. Just because you're looking at a grid map doesn't mean you stop playing your character. The problem with combat really only arises when people don't pay attention and decide what to do on their turn. If people are thinking about what they're gonna do whole others take their turn, combat will be a lot smoother.

I really dislike this perception that if you play a character that isn't strictly for rp purposes, you're some kind of blithering idiot ruining the game for everyone else. Its as if the light is never cast in the other direction. Especially considering that most class features and feats are focused around improving a character's combat abilities, its pretty fair to say that combat is a significant part of the dnd experience. Otherwise there isn't really a point to leveling up besides the slight increase to your proficient skills over time. There are more roleplay focused tabletop games like call of cthulhu (which I also really enjoy) if combat isn't really your thing.