WebBluetooth GATT, filter by custom service UUID

Question

I'm unable to filter by Service UUID using the bluetooth.requestDevice Web Bluetooth Gatt API

My device named MyDevice1 with the service UUID: "607cdd4f-32aa-47da-8209-18f12012e3a4" which has been randomly generated from here: https://www.uuidgenerator.net/

The following works fine and I can find my device:

    return navigator.bluetooth.requestDevice({
          
        filters: [{
            namePrefix: "MyDevice"
        }]
}).then......

But this does not work:

    return navigator.bluetooth.requestDevice({
          
        filters: [{
            namePrefix: "MyDevice",
            services: ["607cdd4f-32aa-47da-8209-18f12012e3a4"] // matches device only service UUID

        }]
}).then......

I've checked the device ID and it's definitely correct.

I it a the case that you can only use predefined UUID or can custom ones be generated for filtering? I've been using Chrome for testing.

Related Information: Bluetooth GATT service uuid overview