When I upgraded to Monterey (well, a beta, actually), I was met with a horrible bug that made me want to trash my laptop: my AirPods would randomly "cut out" for a couple of seconds for seemingly no reason. Sometimes it would take 5 minutes, sometimes 2 h. It was infuriating.
I spent dozens of hours trying to figure it out. Disabling apps, enabling other apps, tracing logs, killing random applications, seeing if it was load-related, trying reboots. At one point I was half-convinced it only happened after coming back from hibernating (not suspending). I tried desperately to "fix" the bluetooth module, disable and re-enable handoff, delete internal settings, copy old bluetooth modules from older versions, working mostly tethered... Nothing seemed to fix it, until I found a message deep in the logs that led me to try to disable "AirPlay Receiver".
Voilá! It was instantly fixed. I documented my workaround here: https://www.reddit.com/r/MacOSBeta/comments/qjgqjx/i_think_i... and it seems it's spread a bit like wildfire through the internet. I should have put up a donation link :D
What that journey taught me was that AirPlay, Wifi, Bluetooth and the like are serious messy beasts on macOS. I work with BLE sometimes while developing and I'm aware of how messy it is, but it seems that macOS has so many features that it makes it far worse.
In any case, my workaround is still working and I occasionally still get people thanking me for finding it. I doubt they really know how much time I spent, and how insane I nearly went, just to find that (un)ticking a little box would solve all of my problems.