GNU/Linux Ubuntu 20.04 NetGear A6100 Driver Setup Guide
Hi! The linked Tutorial shows you Step-by-Step How to Install NetGear A6100 Mini Wireless Driver AC600 USB Dongle Driver in Ubuntu 20.04 Focal LTS GNU/Linux.
And the Ubuntu Focal NetGear A6100 Setup is based on the Intel Dual Band rtl8811AU Chipset Driver Installation.
But the Realtek rtl8812AU/rtl8821AU Driver following the Realtek Documentation is supporting also the rtl8811AU Chipset.
So you may try first with the rtl8821AU Driver Setup and eventually switch to the rtl8812AU.

GNU/Linux Ubuntu 20.04 Installing NetGear Mini A6100 Wireless Driver
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