Migrating from Raspberry Pi 400 to 500 with Connect ZBT-1 (Sky Connect)

My new Raspberry Pi 500 arrives today. I am currently running a Raspberry Pi 400 booted from an external SSD. I have bought another SSD so I can keep the 400 running, just in case.

I am sure the migration is pretty straight forward by restoring the backup. My question is, how do I move the Connect ZBT-1 (Sky Connect) network? I assume I won’t have to re-pair anything.