Hi,
iOS build should finally be installable to registered devices.Note to Charles, Falk and Jean-Philippe, your device status is still processing.
Apple introduced this mandatory 24-72 hour cooling off period for new testing devices some time ago.
You need to set your device to developer mode to be able to install the test release.
This is a new security feature introduce by iOS 16.0, to prevent you from accidentally installing malicious applications.