There are some crusty old apps in the store which were uploaded by an ex-employee and either need updating or deprecating. We can’t do that until the apps are moved over to another account we have access to. I have asked permission via email from the original uploader, and they said yes. I can provide this email to the store team as required.
The account to move from is ubuntucoredev, and moving to snapcrafters. I have found ubuntu-calculator-app, ubuntu-clock-app and ubuntu-docviewer-app, but there may be more. Unfortunately the dashboard I use to search is returning a 504, which I have reported to the store team. So this may not be a fully exhaustive list.