W3C Web Bluetooth "acceptAllDevices: true" does not return all devicies. Why?

Going by the Web Bluetooth Draft Community Group Report, 11 February 2019 https://webbluetoothcg.github.io/web-bluetooth/#example-filter-by-services

and

Web Bluetooth API https://developer.mozilla.org/en-US/docs/Web/API/Web_Bluetooth_API

The following code should return all connected bluetooth devices:

navigator.bluetooth.requestDevice({acceptAllDevices:true}).then(function(device) {
    console.log('Name: ' + device.name);
}).catch(function(error) {
    console.log("Something went wrong. " + error);
});

When I refresh my html page I see the display screen with, "http://localhost wants to pair" at the top and some devices I do not know are listed; however, other devices that clearly show up in the Windows 10 "Bluetooth & other devices" info box are not in the Web Bluetooth info box.

I am trying to create the simplest code sample possible. I am baffled as to why this does not work. Any assistance would be greatly appreciated. Thx!

And yes, Google Chrome is up to date Version 73.0.3683.86 (Official Build) (64-bit)