Hi DJ,
Thanks for coming back to me and don't worry it was just a quick test that I'm glad to offer further investigation for you.
So from my tests, after click the "Disconnect and Sync to a new workbook" button, it will prompt the window saying a new workbook will be created next to the current workbook, which I believe it is currently unavailable to switch the storage location from OneDrive to a SharePoint site, neither change from site to site.

Meanwhile, after I clicked OK this, it turns out the new copied workbook will be created in the same location as the original workbook, and I found the new copied workbook will include all the previous responses. And new collected responses will be added to the new workbook but not the original one.
Please let me know if there have anything I can do for you and if you find my reply bit helpful, you can also use the feedback tool below my reply to submit your feedback for me (pictured below), which will definitely help others in the community who are experiencing similar problems to find solutions to their problems more quickly.

Best Regards,
Mia