Dear Michael Schuldenfrei
Good day! Thank you for posting to Microsoft Community. I am happy to help you
According to my search in the official documentation, I really didn't find the shortcut you mentioned: Keyboard shortcuts in Excel - Microsoft Support
I've also tested it, and if you use Ctrl+C and Ctrl+V directly, it will paste the format by default, so if you want to choose the pasting method, you can try to use Ctrl+Alt+V:
I look forward to your reply. Thanks for your cooperation.
Sincerely,
Tin | Microsoft Community Moderator