Bluetooth connectivity not working since upgrading to Monterey 12.7.2

My Doqaus bluetooth headphones are no longer connecting to my MacBook Air since upgrading to Monterey 12.7.2. The headphones are working normally on an older MacBook Air with Big Sur 11.7, as well as with an iPhone. No hardware issues detected after running Apple Diagnostics, and I've tried nearly every other course of action, i.e., unpairing the headphones and restarting, finding and deleting the bluetooth plist file, resetting the bluetooth module, etc. Any advice?