Yep, it's now end of April, 2023, and I still get multiple sync conflicts a day between my iPad, iPhone, and Mac. I've been a paid premium user for over a decade, from back when the app actually used to work, but I've thrown in the towel; I've recently transitioned over to another notes system and canceled my EN annual renewal. Synch between devices is about the most core of functionalities I can imagine in a paid app like this, and EN has had it all screwed up for well over 5 years. Posting a promise to improve to a blog is one thing and actually DOING something about it quite another. I'm sure all the California EN devs are still working from home, hiding under their beds from CV, and will be continuing to do so for years to come, so this kind-of stuff will never change/improve until the business does finally file for Chapter 11, which it will.
Good luck to everyone else sticking it out!