How to delete your Apple ID account - Apple Support
"Make sure that you sign out of all your devices to avoid issues with apps that use your Apple ID account or iCloud. After your account is deleted, you can't sign out of iCloud or turn off Find My iPhone Activation Lock on your devices. If you forget to sign out, you might not be able to use your device when your account is deleted."
This may work in this situation -->
Apple can reset a device if a person can provide sufficient evidence of valid ownership. Try this online here --> https://al-support.apple.com/#/additional-support
To your actual question, Apple does not have a statement about email address re-use in its documentation that I can find but here is an April 2021 post by ASC contributor IdrisSeabright that was recommended by the official Apple team -
"Once you've used an email address as an Apple ID, it can't be used again for an Apple ID, even if the first Apple ID has been deleted."
https://discussions.apple.com/thread/252629414?answerId=255095641022#255095641022
This is in accordance with what is claimed in this April 2021 post https://discussions.apple.com/thread/252629414
- Original post: "I tried contacting chat support and finally phone support today and they told me that you can NEVER use an email address that was used for a deleted account."