Give/show people the option to install the “Unofficial non-free images including firmware packages”.

These images/ISOs have non-free packages for firmware, eg wifi cards, see https://wiki.debian.org/Firmware

goto debian.org
click on Download Button
When asked to download ISO, click on Cancel Button
click on “Unofficial non-free images including firmware packages”
click on “11.2.0+nonfree/”, or if you want Live ISOs click on “11.2.0-live+nonfree/”
we will click on “11.2.0+nonfree/”
click on “amd64/” or “i386/”, depending on what you require
we will click on “amd64/”
click on “iso-cd/” for cd images or
click on “iso-dvd/”, this is mainly for desktop

for a server, we will click on “iso-cd/” for cd images
click on firmware-11.2.0-amd64-netinst.iso
once downloaded, continue “Creating a bootable USB” in your tutorial as above,
during the install, we wont install “Debian Desktop Environment” or “GNOME”, we will install “SSH server”

for a Desktop, we will click on “iso-dvd/” for DVD images, as we want to install a server
click on firmware-11.2.0-amd64-DVD-1.iso
once downloaded, continue “Creating a bootable USB” in your tutorial as above

for “live images including firmware packages”
Live images :- run Debian from the DVD/USB, without installing, to see if Debian will run on your PC/Laptop
while running Debian from the DVD/USB, you can install onto hard drive, there is an icon for installing Debian

goto debian.org
click on Download Button
When asked to download ISO, click on Cancel Button
click on “Unofficial non-free images including firmware packages”
click on “11.2.0-live+nonfree/”
click on “amd64/” or “i386/”, depending on what you require
we will click on “amd64/”
click on “iso-hybrid/”
Now download the desired ISO
For GNOME: debian-live-11.2.0-amd64-gnome+nonfree.iso

Thanks
William