Hi. I have used the new webusb setup process for both the Photon 2 and Argon devices with success. Here is a link:
https://community.particle.io/t/announcing-the-new-particle-web-usb-setup/64149
Is this what you are using? If so, I believe, it can only be used in Chrome, Edge, or Opera browsers on Windows, Linux, Mac, and Chromebook. It cannot be used on phones or tablets, and cannot be used with Safari or Firefox. Also, the USB cable needs to be for made for data, not just charging.
I just now found the above link can be accessed by going through the decision tree of the
Support & Troubleshooting menu from this page:
https://docs.particle.io/
Hope this helps!