Finder search does not find existing folders/files
I have an annoying issue with finder search - it does not find folders/files that surely exist. And when I make the "easy fix" to throw the folder in the Spotlight privacy tab and remove it (forcing re-indexing) I can use finder search for 10-15 mins and then it's useless again.
How to fix this nonsense permatently? This simply can't continue, it's a basic tool/function. I'm using Monterey 12.6, but it doesn't seem to be tightly related to one specific software version.
MacBook Air 13″, macOS 12.6