I have seen recommendations for Joplin. I downloaded it for Linux and Android (GrapheneOS). I created a note on desktop and transferred it to phone. I can't find how to import the .jex file into the mobile app. That seems really dumb.
Am I the dumb one?
Yup, it's not great, but it does the job and syncs well, I don't think I've seen it fail. I selfhost using WebDAV and Nextcloud.