I got this device in today. I've got the BCM94360CD and adapter like mjban, and it works just fine (mostly), but I wanted BT 5.0 because of some of the limitations in 4.0 (in 4.0 when you put it in microphone mode like for a Zoom chat, it knocks the headphone quality down to 8khz (very unacceptable! - SCO codec)), whereas with 5.0 it won't (fresh and clean! - well, mSBC has it at 16 kHz)). I got it working using the BrcmBluetoothInjector.kext method, but it's nowhere near as fast to respond as the Broadcom. For example, pairing is much slower. Also, Handoff and Continuity are much noticeably slower/less reliable with the Laird than with the Broadcom. I've still got some tinkering to do to see if it's something in my config or placement, but I may just be putting this back in the box and sending back if I can't make much headway soon.
Also for what it's worth I couldn't get Apple Watch unlock working with either the BRCM or the Laird.
Actually I rebooted without loading those kexts or patches and I can see the device and it pops up as my preferred bluetooth device out of the gate. Still same sluggish handoff stuff (if I open Safari or Mail on the iPad it takes four to five seconds to register on the Mac desktop; with the Broadcom it's immediate. The interesting thing is that switching apps on the Mac desktop register immediately on the iPad with either the Laird or the Broadcom. Hmmm)