Cendra,
I wanted to follow my previous response up with the following. In our experience if you already have CAD installed and do an in place upgrade of Windows (8 to 10, 10 to 11 etc), CAD will generally require a reinstall after the upgrade before it will work properly. In the case of an in place upgrade we recommend uninstalling then reinstalling CAD vs trying to do a repair/reinstall through Programs and Features.
As to any known issues, the sample base is still relatively small but we haven't been made aware of any workflow breaking bugs related specifically to Windows 11.