Not really, i've know many people like this who were bottom of their class and had edge over me in chess, fun games like it or random specific trivia, they don't do it to feel intellectually superior they do it because it's more enjoyable to them than studying

They're not dumb they're just not trying altogether, and when i talk with them about the topics they enjoy they actually show great understanding on them, it's all just people with interests

If they were trying, say in a debate and they're deliberately refusing to follow simple proofs they themselves use, yeah then they're dumb, but i've never come across someone like that that still managed to be good at something, it's a core part of learning as a process

Sure there are people with useful interests and ones with useless ones, but i refuse to call the useful ones smart and useless ones dumb, it's demeaning to those people's capabilities, i don't hold anyone to this way of thinking it's just mine