I was initially excited that my laptop upgraded to a new version of Big Sur. I then checked both Apple TVs to make sure the are up to date (which they are). Unfortunately, I am having the same exact issue as before. The AirPlay issue is still not present on my MacBook Pro. Instead it is just Screen Mirroring, which doesn't even work. As stated before, my iPhone continues to work just fine with AirPlay. I really hope Apple can fix this soon because it has been a long time and these devices are supposed to work pretty seamlessly together.

It's sad that I posted this one month ago and there still aren't any solutions. I'm hoping the Apple developers can come up with some sort of solution since tech support was not able to resolve the issue. At the very least, it's helpful to know I'm not the only one having the issue. I also reset my Apple TV to it's factory settings, which did not resolve the issue. I will make sure to post an update if anything comes up.

AirPlay seems to have been wiped out on my MacBook Pro since the move to Big Sur...The icon was no longer saved in the toolbar, so I went to the widgets to find it. Instead of saying "AirPlay" there was "Screen Mirroring" which was odd since screenshots online from other users still shows AirPlay. AirPlay worked just fine on my MacBook Pro before using Big Sur and it still works perfectly on both Apple TVs I have when I use my iPhone. This leads me to believe it might have to do with the upgrade since only my MacBook Pro is having this issue. I ended up calling Apple Support and spent over 3 hours troubleshooting the issue, but no solution yet. Spoke to 3 different techs and it seems like none of them have seen this issue before. I've been patient since I know Big Sur is new, but this is a bit frustrating to say the least. I've restarted my router, both Apple TVs, my MacBook Pro (multiple times each), and still no fix. The screen mirroring does not work, since the AirPlay display in System Preferences keeps switching to "Off" immediately after clicking which Apple TV I want to use it for. I've also made sure the network names match up, so I'm running out of ideas. Does anyone have any advice? I appreciate any help I can get. Thank you.