The inability to easily search one notebook without using Boolean logic or filters is extremely disconcerting. I am an avid Evernote user since the start and have over 6,000 notes. The "new" look is trying to apply artificial intelligence in a very comical way. Note: I have an MS in AI.
Somehow, Evernote made a simple, easy to use, cross platform, great content management tool into what appears to be a beta version of school project in machine learning ten years ago.
I am moving to OneNote, which is now available cross platform and easily searchable. Not my choice at this point.
Wish me luck.