I'm using KDE Neon and bought the following WiFi USB-Stick: AUQUSH 1200Mbit/s WiFi Adapter[5.8G/867Mbps+2.4G/300Mbps], External 5dBi Antenna mit 11AC Dualband Wireless Adapter und Abnehmbarer WLAN Stick für Windows XP/Win 7/8/8.1/10/Linux/Mac OS. A driver CD is given, but my notebook has no cd-drive. How do I install the functionalities of this WiFi-Stick?
Edit: On windows the adapter was shown as Realtek 8812BU ... So I continued searching. I've found this solution: https://ubuntuforums.org/showthread.php?t=2394372&p=13776566#post13776566, but I used a newer Version in the git repo, but it worked.