I don't use LSP for all the real-time stuff, but I do use it for other things like rename symbol, lookup documentation, jump to, etc. and just "the file you hav

I don't use LSP for all the real-time stuff, but I do use it for other things like rename symbol, lookup documentation, jump to, etc. and just "the file you have open" isn't really enough for that in most cases. You need to know about the "file layout" or "complete project" for that sort of thing.