A lot of 4G modems connected via pcie still are USB interfaces internally. So the usb 2.0 limits on these are still there (though that is not much of a problem

A lot of 4G modems connected via pcie still are USB interfaces internally. So the usb 2.0 limits on these are still there (though that is not much of a problem in general as 4G speeds are low). With 5G if you connect to a usb3 port for tethering I wonder if the speeds are above the usb2 limits or if this driver is still limited to usb2. Because with 5G modems, most of the devices that use it as a backup likely use pcie speeds. Would be a waste to use usb2 speeds