Things you should do after installing Debian 11 KDE

Debian instructions:
https://drive.google.com/file/d/1UK3YIXZtGzYKxLmBzPJQrmPu-qmLVpWi/view?usp=sharing

Debian non-free ISOs:
https://cdimage.debian.org/images/unofficial/non-free/images-including-firmware/