I've been looking for something simple that I can use cross platform (I don't care about mobile, so just across macOS and Linux really). So far I found nb, which is nice, but it tried to do to much and locating notes isn't great. I've also tried Bear, which is macOS only, but it also doesn't organize notes in a great way in my opinion.

Is there anything simple, which doesn't require you to be an organizational genius already? Notes.app is sort of okay, but no cross platform.