ArcoLinuxD or ArcoLinuxB

It does not matter whether you are using ArcoLinuxD or ArcoLinuxB.

In the next video’s you will see that I will work on an ArcoLinuxB-Qtile ssd.

ArcoLinuxD or ArcoLinuxB are essentially the same thing.

The delivery system is just different.

ArcoLinuxD installs a base system then you install the rest with scripts.

ArcoLinuxB installs all packages at once via an iso.

Qtile is a tiling window manager and it is coming from here.
You can get more information on the Arch Wiki.