Intel Ubuntu 20.04 Wifi Driver Installation – Step-by-step

Installing Driver

2. 2. Installing Intel Backport Driver

   So now to Install Intel Backport Driver for Ubuntu
   Simply play:

   sudo apt install backport-iwlwifi-dkms

   And then to load it Reboot with:

   sudo reboot

   Especially relevant, in case of issue then you may see: How to Upgrade Kernel Guide.