Disable WebBluetooth is a Chrome extension that disables the WebBluetooth API. It has no configuration settings, and is suitable for force-installing via Chrome Enterprise management.
WebBluetooth provides access to devices that may not be designed with an adversarial threat model in mind, protected only by a permissions dialog that does not make the risks clear.
Given the lack of widely-deployed uses of WebBluetooth, disabling it is a prudent defense-in-depth measure.
You may also be interested in disabling WebUSB.