WTH Why is the raspberry Pi 4 bluetooth integration not seeing any bluetooth devices

@petro - thank you for an extremely helpful answer. You also helped me find where System information went.

The System Information pop up has gotten even more useful information since I last looked. I wish it was an actual page I could link to instead of a pop-up.

Understood. As mentioned in other WTHs, I wish that the integrations page behaved more like the devices page – a list that gives access to config page for each integration.