I just moved from OneNote to EverNote. I made the move because MS "dumbed down" OneNote along with Sharepoint and other services.
Here is a response from MS on one of its boards in March 2019:
In my humble opinion, the reason why Microsoft replace the OneNote desktop app with OneNote for Windows 10 is this app has improved performance and reliability, and it's powered by a brand new sync engine (Now also available on web, Mac, iOS, and Android). Which will enhance user's experience on work collaboration a lot.
There are a few features that are only available in OneNote for Windows 10. To find out, you could check the following article:
What's the difference between OneNote and OneNote 2016?
But, we need to admit this transition cause our customers a lot of troubles, and some importance features like Outlook tasks or open local notebooks are not available on OneNote for Windows 10.
We are deeply sorry about it.
Given this situation, we would suggest you vote for make the Windows 10 version feature rich in OneNote UserVoice, which is a specific platform for us to collect user's request. Your suggestion will help us improve our Products and give users a better experience.
Your understanding is highly appreciated.
Alex Chen -- MSFT, Agent, Moderator
The Verge also wrote about MS changes in November of last year. Things are going to be unstable over there for a while as they move to their Fluid platform.
I'm not waving you off, just letting you know you may be trading one headache for another.