GNU/Linux openSUSE TP-Link Archer TX20U Plus Wifi Adapter Driver Setup – Step-by-step Guide
The linked tutorial shows you step-by-step How to Install TP-Link Archer TX20U Plus AX1800 Wireless 802.11ac Driver in openSUSE GNU/Linux desktop – Step by step Tutorial.
And the openSUSE TP-Link Archer TX20U Plus Setup is based on the Realtek rtl8832AU Chipset Driver Installation.
So the linked guide explain How to Download and Install the rtl8832AU Linux Driver.
Finally, in case to check your Adapter Chipset see: How to Check Wireless Device ID on GNU/Linux.
GNU/Linux openSUSE TP-Link Archer TX20U Plus Wireless Driver Installation Guide