[google pixel 9a] How to make it so calls don't go to bluetooth headphones?

So I recently upgraded from a pixel 3a to a pixel 9a, and I'm in the midst of getting all the settings moved over manually, and I'm sure you already know what I'm currently stuck on from the title.

On the 3a, it was a simple matter of going into the setting for the Bluetooth headphones I had registered on the phone and toggling off "phone calls", but it isn't there on the 9a. Don't suppose anyone has figured this out already.