I know some people use [[orgzly]] on mobile. and some [[obsidian]]. I’d love to do a proper survey of alternatives and be able to recommend a good solution that is also open source.
[[obsidian]] is still the best general purpose editor I think, only downside is that it’s closed source of course. but check out [[obsidian git]] which makes syncing to git easy. I used it quite a bit but then decided to focus on free software as [[agora editors]]