The OnePlus smartphone's own Internet connection can be shared via USB tethering to connected devices such as laptops or PCs.

When establishing a USB connection with a PC, we are asked which of the available network connections should be selected.

Android 10 | OxygenOS 10.0
USB tethering -  Open the  Settings
USB tethering -  Tap on  Wi-Fi & network
USB tethering -  Tap on  Hotspot & tethering
USB tethering -  Enable or disable  USB tethering
  1. Open the Settings
  2. Tap on Wi-Fi & network
  3. Tap on Hotspot & tethering
  4. Enable or disable USB tethering

OnePlus Instructions