Had the same problem then i found this:
https://developer.apple.com/documentation/xcode/distributing_your_app_to_registered_devices
Collect Device Identifiers: macOS
To find the device ID for your Mac:
Choose Apple menu About this Mac.
Click System Report.
Select Hardware to see the Hardware Overview; the UI displays the device ID as Hardware UUID (in macOS 10.15 and earlier) or Provisioning UDID (in macOS 11.0 and later).
Highlight the Hardware UUID or Provisioning UDID to copy it.
It looks like you need Provisioning UDID in this version and device.