> where the chrome extension doesn't always work and I need to quit and restart
In my experience, this happens when there is a new Chrome version, but you haven't updated to it yet. When you quit and restart Chrome, it can update. Next time the extension stops working, check chrome://settings/help.
The iPad app UI is far more frustrating to use, mainly because the search function is hidden behind a down scroll now.
I'm keeping an eye on Proton at the moment as I use their email and they do have a password manager offering.