Username Auto-Suggestion Duplicates for New Credentials

Hi all,
I was wondering if there’s a way to turn off the auto-suggestions when creating a new login?
As you can see in the image this drop-down box for me often produces duplicates, like in the case of the Gmail address, which are identical.
From a security standpoint, I’m also not a fan of the app showing a plethora of username suggestions, with usernames I’ve already used in the past.
Thanks for your help.
