How to remove shared printers from all users system

Question

OldServer = Server 2012. 3 printers shared from the server. Mapped manually by the users

NewServer = Server 2022. 2 printers. Mapped via GPO to the users.

Problem:

All users have the 3 printers mapped to their systems from the OldServer. I have removed the shares from the server, but they still exist on the users laptops (Windows 11), along with the new NewServer printers. They keep picking the OldServer printers to print and the job fails.

How can I remove the OldServer queues from all the user's computers?

Can't us GPO because they were not added via GPO.

Can't use the registry as it is way too dangerous complex to muck with.

Cannot find a way to do it with PowerShell.

Am I relegated to sending out instructions on how to manually remove them?

Thank you.