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As if it wasn't bad enough that they want me to use a random internet service to add a keyboard to a usb wifi receiver, they have the balls to put this for Firefox users. I clicked out of pure curiosity, as I'm not even remotely interested in involving a corporate internet service in getting my keyboard connected to my computer. This is the message you get now on Logi Options software if you have a Unifying Receiver: 
For the curious: https://logiwebconnect.com
EDIT: some people on the thread have brought up that the error message being displayed for Firefox users is due to the WebUSB API not being implemented by Firefox due to security concerns. This still does not justify having to use a web app to plug peripherals to a PC.
This picture here seems pretty damning for a monopoly suit. They didn't even include Firefox, meaning every browser listed is reliant on Chrome's Chromium engine.
Other people on the thread have commented that it's actually due to Firefox not implementing WebUSB due to security concerns, so it is technically a valid message, but for the wrong reasons. Why the hell does this need to be a web app?
For tracking purposes !