I create a new note. I tab back to the Title field. I enter a few characters and the edit focus moves itself forward to the note text.
I usully start my note titles with the date, like "22-06-16". The focus usually moves after the month and date, i.e. between character 5 and 6. Because of what I'm entering, I'm pretty confident I'm not hitting Tab or Return at that time. I don't know if the move is triggered by the 6th character, or the hyphen, or time, or what.
This does not occur every time, but it has happened enough times that I noticed it.
I think this occurs on both my work Mac and my personal Mac, so it's not a keyboard or machine issue. Both are running the same versions of OS and Evernote.
Mac OS X Catalina 10.15.7
Evernote 10.38.3-mac-ddl-public (3437)
Editor: v149.0.18202
Service: v1.53.4