Thanks for that-- your comment inspired me to look into OneNote. This article is pretty convincing, even though the author chose to stay with Evernote for the time being. OneNote appears to offer all the key functionality of EN with the added very cool feature of converting handwriting to text. And yes, customizable grid notebooks. https://michaelhyatt.com/evernote-alternatives.html
The only real drawback I see is a problem with importing from EN, but It might be worth some extra work to get away from a platform that just pissing me off at this point.