I have the same issue. Does Apple look at these questions? No solution posted?

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Same problem. I updated to Monterey 12.3.1. Bluetooth will connect when pairing then disconnect immediately. Then the iphone says bluetooth to Mac is not supported. I have Mac Air 2015. The only good news is that the wired connection now works when it only worked sporatically before. So development is not completely dead.

Same here. Getting more frequent. Mine is a MacBook Air early 2015. It starts heating up, then the fan goes on. I usually hold the power button down to stop it for fear of the the crash cycle damaging the computer. The update to 12.6 and Xcode 14 is definitely the problem. I am curious about the devices. Are all devices crashing or just older ones?

Same problem here ever since I went to Xcode 14. My MacBook 2015 freezes first then starts heating up before crashing. I usually have to hole the power button down to shut it down before it heats up too much. I have posted this before but don’t see the post here??

I have the same issue using TestFlight. Unfortunately, setting the CKSharingSupport to "Yes" does not solve problem for me. Using iOS16.2.