Computer Configuration > Administrative Templates > Microsoft Edge > Content settings
Both
HKLM\Software\Policies\Microsoft\Edge
Control whether websites can access nearby Bluetooth devices. You can completely block access or require the site to ask the user each time it wants to access a Bluetooth device. If you don't configure this policy, the default value ('AskWebBluetooth', meaning users are asked each time) is used and users can change it. Policy options mapping: * BlockWebBluetooth (2) = Do not allow any site to request access to Bluetooth devices via the Web Bluetooth API * AskWebBluetooth (3) = Allow sites to ask the user to grant access to a nearby Bluetooth device Use the preceding information when configuring this policy.