You can sign up for a google account with any email address, so if you'd never used GFYD you'd be able to do this no problem.
Over the last week I've gone through all of the steps of registering a new domain, setting it up with Google Workspace, sharing some docs back and forth, deleting the entire organization, and then signing up for a new google account using the same email address (so no gmail). After each step I waited 24 hours.
I was able to access Docs and share back and forth using this reused address on the new account. You'll obviously lose all of the existing share connections, but it's not like the address itself is burned.