I moved a number of work notebooks to OneNote. I wish I hadn't. The OneNote sync is slow. I've had to delete backups from my desktop several times to get syncing to work. The majority of the time I log into Office65 on the web and work off the web version. Since I started WFH in March, I have created new notes in EN.
I really dislike the new version of EN. It's moved toward the web version...which I stayed away from. I wish I'd checked the forums before upgrading. I have a Premium membership, and would pay to be able to revert.