@Riley_S I misstated that Hubitat is not a Matter controller. It just can't commission the device or be the first Matter controller: <link not allowed> Adding Matter Devices to Hubitat For any Matter...

@Riley_S Thanks for your reply Riley_S. When I setup the devices in the Tapo app, it did use the Matter QR code. I was able to use that code to then successfully add the devices to Hubitat as Matter...

The Tapo app appears to be missing a required feature for Matter multi-admin. I purchased Tapo S505 switches and added them to Matter using the Tapo app as recommended (rather than a 3rd party). Now...