How does Windows determine whether to show a Bluetooth LE device in the device list?

I have a BLE device which is not showing up for pairing in the list of devices in Windows Settings. This happens in both Windows 10 and 11. I have a small application that listens for and displays the status of advertising BLE devices. It is picking up advertisements for my device, however I see the Flags value is set to 4 (BR/EDR not supported). ... whereas I see most devices nearby - which do show on the list - have a value of 6 (BR/EDR not supported LE General Discoverable Mode.) Could this be the reason? i.e. Windows sees my device but considers it to not be Discoverable because it's missi

Question by komodosp on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.