Not many AC wifi USB adapters are for Linux. This one is:
Good price, $19.97 (as of today, 2020-Nov).
Relatively easy to use. Read some comments and found how to install it on Linux:
- git clone this, https://github.com/RinCat/RTL88x2BU-Linux-Driver
- sudo make install
- sudo vi /etc/modules, and add "88x2bu" if not added already
- sudo modprobe 88x2bu or reboot