I have recently migrated to Avast Passwords from passwords stored in Chrome, trying to loosen my ties with Google a bit. The program itself is quite neat but compared to Chrome's native password manager and to Android's auto-fill, Avast Passwords barely work. Sadly, it's a bad UX.
Quite often times, the browser add-on does not recognize I'm on a log-in form and doesn't auto-fill anything so I must open the app, search for my credentials and manually copy them over. The same for the registration forms, only once I have seen the inline password generator to pop up under the password field. At least the side panel with a password generator can be opened manually if nothing else.
In general, however, the browser workflows are much better than on Android, there the overlay either does not show up at all, or shows up just to disappear again when I interact with it.