This article walks through diagnosing a USB tether that would not negotiate above USB 2. 0 speed, on a phone that advertises 10 Gb/s. The hunt took four cables and three physical ports across two days.
Source: [Dev.to](https://dev.to/gde/the-cable-buys-headroom-91-of-a-usb-20-bus-36-of-a-thunderbolt-one-563n)