Setup did not include BT pairings

I setup my new iPhone using the option that has you keep your old phone next to the new one while it transfers data. I noticed that none of my BT devices were transferred over. I can’t remember if they were the last time I did a new set up from an encrypted iTunes backup, does anyone know?
I have a couple things that I remember were hard to pair or had codes and it would be nice if they would have transferred in the setup.