Thanks for passing on. I have submitted feedback in the Edge app on this issue multiple times to no avail. The same goes for the other autofill issues I posted here. Even then, there are still bugs I have not submitted.
One is that the trashcan icon to delete an entry doesn't always display. This can be fixed by dismissing the autofill dropdown and opening it again. Usually once is enough but it may take more.
Adding or deleting basic info has been broken in canary on and off for at least a week. Deleting entries, either individually via menu or with selection and the Delete button, triggers the confirmation popup but the entries do not get deleted.
Sometimes Edge will suggest the Basic info names for a form field but selecting the entry doesn't add it. For example, visit
https://www.familysearch.org/tree/person/, click on the Recents menu then Add Unconnected Person. Click in the First Names field. You will see suggested basic info. Pick one and nothing happens. In contrast, type a slash and then the first letter of an entry. This changes the behavior so that you only see individual field values but if you select one, it will fill in. This mechanism cannot be used to fill in multiple fields such as the first and last name. You will need a free familysearch.org account to complete this repro.
Payment card and password autofill are also buggy. I would report more but the stuff I have reported multiple times over long periods don't get fixed so it appears that no one cares enough.
Rich