That's literally my setup everywhere. 120 for html/java/JavaScript and 80 elsewhere.

Really suites each language imo Although I could probably get away with 80, habit to use tailwind classes can get messy compared to 120

Caveat, my personal experience is mainly limited to JS/TS, Java, and associated languages. 120 is fine for most use cases; I've only seen 80 work in Go, but that one also has unwritten rules that prefer reducing indentation as much as possible; "line-of-sight programming", no object-oriented programming (which gives almost everything a layer of indentation already), but also it has no ternary statements, no try/catch blocks, etc. It's a very left-aligned language, which is great for not unnecessarily using up that 80 column "budget".