I have Macbook pro M1, iphone 12 pro max and airpods pro. All are updated. Had difficulties with auto switching between my macbook and iphone but after I read some articles and other forums, seems like it helps to restart your devices, especially the macbook pro. Then the switching became a little better. If Im playing a YT video on my macbook, then I'd pick up my phone and play music on spotify, audio automatically switches to my phone. It takes a second or two though. But I noticed when I want the audio to switch back to my macbook again, I need to manually click on the bluetooth icon, click on my airpods pro twice to make it work on the macbook again. Not sure if this is something that can be fixed.