Recently, I needed to move a complicated Google Form and an associated Google Sheet that stored the responses to another account. Within an organization, this is pretty easy to do, but moving between workspaces doesn’t appear possible.
There is a workaround by using a Google Shared Drive in the target account and adding the source account to the Google Shared Drive. The source account can then move the files to the Shared Drive and doing so transfers the ownership of the files to the Shared Drive. At that point, the target account can go into the shared drive and move the files to their drive.
Jumping through all of these hoops preserves existing links to the form and avoids the need to relink the responses sheet which can sometimes be problematic.