As much as I liked bluetooth these Logitech Unifying Receivers still have some importance.
Wake From Sleep ONLY works with the USB Dongle. Bluetooth cannot do it.
On my Ryzen Red switching Inputs on MX Ergo Bluetooth Mouse and Keyboard are some how conflicting with either other. Turning Bluetooth only keyboard on and off again fixes problem for a little while, but now I think I am going to switch my MX Ergo over to using the 2.4 GHZ dongle. Tired of it being jumpy.
I have for M/N C-U0007 Dongles and one M/N C-U0008. Cannot tell the difference.
A C-U0007 is on Renior.
I put the C-U0008 on Picasso (Ryzen Red.
Apparently there are firmware updates on these? Not sure how to check firmware version?