Long story short, I switched from NVIDIA 470 proprietary driver to the X.Org open source display driver on my Dell G3 running 20.04. Rebooted and all of a sudden I have zero internet connectivity. Which means I can't reinstall the proprietary driver.

Doing a sudo lshw -C networks shows that both the wireless and wired network conrollers are "UNCLAIMED".

How can I fix this if I don't have an internet connection - Download the proprietary driver onto a USB stick?