I use AirDrop to copy files from my phone (iOS 16.1.1) to my MacBook. It normally works fine.
Since upgrading to MacOS 11.7.4 it doesn't work. I select something to share on the phone, choose AirDrop, see my laptop appear in Devices, tap on it, then the label changes to "Waiting..." but there is no popup on my laptop and the file never appears.