Decided to try experimenting with Notion. A few issues right away. Exported ~ 1000 notes from EN to html. Tried to import; it crashed after 500 or so; and decided to put them all in the trash. Not a real loss, because on inspection, no attached content comes in anyway. Their import guide warns images won't come over, but my PDFs didn't either. That's a killer; out of 23,791 notes, I have 4788 w/PDFs, and more with various other content attached. Also, Notion truncated note titles, and of course the detailed info that is kept with the notes goes away. There is also a cap on free usage; it appears that just importing all my notes without attached content would hit 100% based on what it says I used in my test. Appears a personal account w/unlimited is $4/month. But unless there is a better migration, I don't see going that way soon.