I’ve had the ZBT-2 antenna for a while now but haven’t been bothered setting it up yet. I’m on Zigbee2MQTT atm and I’m still contemplating if I should switch over to ZHA or not.
Either way I’d probably be setting all my devices up again for a fresh start as I don’t have that many, anyway.
LookPilot might not be FOSS but it just works in my experience.
The most I’ve had to do once, for Arma 3, was change my compatibility to Proton instead of the CachyOS version. Other than that it’s just been plug and play.