I’ve got an MBP that doesn’t show up, and never has, but it sees the rest. Any other macbook or iphone I’ve tried AirDrop with just works, but not my MBP.
I've had trouble with airdrop from phone to mbp when the mbp was on VPN. I don't know how airdrop works but I'm guessing the fact the VPN takes over DNS (and blocks requests to all other nameservers) has something to do with it.
Who knows though. Apple's engineers love writing software that doesn't produce useful logs.