Hi, for (2) this is not after unsuccessful attempt. I successfully unlocked it with fingerprint, and it reverts to a password-only screen. This is a glitch that shows up occasionally.
And in (3) the website is proton.me, and various other sites I cannot remember.
In response to (5) you could make it a little smaller at least. Or add a "hide for this page" or "hide permanently" option.
Also, it would be nice if passwords can be saved even if you are not logged into Enpass. If you look at Nordpass for example, you can still generate a save dialog when the password manager is locked - you would just click "save password and unlock vault" to continue to save the password so you don't lose it accidentally. With Enpass, there is no such functionality.