This is related to Firefox unwilling to add support for WebUSB because, I suppose, they believe that a browser is not a general purpose application launcher and the scope of what it can do should be limited. As such, it should not be allowed to e.g. control peripherals like the USB devices.

Which is in my opinion a fairly reasonable take.

But given the current situation, I would assume that the companies providing WebUSB tools like installers would also spend a few moments to create e.g. a Python script that would do the same thing but locally. So that anyone unwilling to use WebUSB within their browser can have a vetted and transparent way to get the same thing done.