Evernote 10 is awful. I use Legacy daily and then occasionally the web version to create headers. Functionally all that 10 does is duplicate notes and freeze or lock up. I see zero value in it. If I could find a way to export all of my Evernote content to another application I would. It's certainly not worth the US$70 they are charging
At a minimum if 10 could be switched to manual synchronization that would make it at minimally usable.
Like so many people on this discussion I am mystified as to why Evernote decided to sunset their Legacy version.