This idea applies to the desktop Proton Pass extension (specifically, Firefox for me)

Current flow for login to a site: When entering username and password, the autofill prompt is directly below the input field. For 2FA autofill, it moves to being below the Proton Pass Extension icon in the toolbar.

Proposal: Either have 2FA autofill, /or/ relocate the autofill prompt to be in the same position as the username and password prompts.

As a layperson, I think of the username, password and TOTP to all be fields within an entry in Proton Pass, so I can't think of an architectural reason that would stop this.

From a UI perspective, it would minimize mouse movement/context switching and streamline login.