Was also in your boat, but realized there are various tools to export Apple notes as markdown that work reasonably well; Obsidian itself recommends one[1]. Meanwhile, I'm impressed that Apple notes keeps getting better. It was _almost_ good enough for me to abandon my own note taking app. The things that slowly drove me nuts were lack of real code formatting and lack of image formatting (after they added note linking and tagging, the prior issues I had). I'm still surprised how long it takes most notes apps to get decent out of the box image formatting; few would want to drop an image onto their note and have it blown up to take up the full page by default. Just make your notes app look like the typical blog by default and _most_ people will love it[2].

[1]: https://help.obsidian.md/import/apple-notes. [2]: tbf it took me quite a bit of work to get there in my own app, and its still got bugs