I use gmail for personal and corporate logins so the list of possible account logins is long.
The new popup is not wide enough to see the whole email address. And it's not resizable.
It's not searchable to filter out results.
1Password Version: 1Password Version 6.8.8 (688001) Mac App Store
Extension Version: 1.15.7
OS Version: 10.14.6
Sync Type: account