No, that isn't what E2EE is. E2EE only relates to encryption during transit.
To the best of my knowledge the current state of this is that the feature enhancement issue is still open and the FAQ still states:
There is however an issue open about it, so pull requests are welcome: [Feature request] Password or pin protection · Issue #289 · laurent22/joplin · GitHub
From what I can see it doesn't seem like anybody has been bothered by this enough to submit a PR for it.