This PR is based off of #18566.
Changes:
@peterhashair by "autofill password plugin" do you mean a matomo plugin or a browser extension? Can you provide a link to it?
@diosmosis browser extension. Like bitwarden or chrome password autofill. I think it trying to fill 2 fields, username, password. The popup only has the password field, so it changed the field behind the popup confirm.
@peterhashair that's interesting, thanks, I'll disable the inputs as you suggest.
@peterhashair fixed in https://github.com/matomo-org/matomo/pull/18576 where the relevant angularjs code is migrated