When editing a login, the user should be given the option to either prioritize the email address, or the username when autofilling.

I would appreciate this feature in a situation where the service I'm using only allows the email address or the username when logging in. For logins with a valid email address and a valid username, and the service in which the login supports only allows the email address when logging in, I manually have to open Proton Pass and copy the email address, then paste it, because Proton Pass always prioritizes the bar for the email address with the username.