Update:
I got past the ENAMETOOLONG errors, of which there were 3
1 - From note that was originally a webclip from Evernote. I found the original .enex file and was able to import the problem note from there.
2 - Incorrectly formatted tag in an exported as md Bear note. It looks like I pasted the title and beginning of one note one the tag ( # sign plus text ) in the Bear note. Removing the extra text from the source document and re-exporting as md fixed it.
3 - A note that was originally a webclip in Bear and exported as md. I removed it from the exported Bear folder and am trying to web clip it with Joplin's web clip utility. Joplin is timing out whenever I try to clip it. It's just an overrally difficult Reddit thread page. Here is the link if anyone wants to give it a go.
I was able to import all of my notes, minus the
exception that I noted above, using the .enex files from Evernote and the markdown files from Bear notes app.
It would have saved time to not have had to work around the ENAME error, so It might be worth investigating.
I’ll keep the problem notes available in case you wish to see them for t/s purposes.