We all love icecream but who'd love turd icecream?
Because I don't get who'd want to use an MS Linux distro
Seems to be based mostly on Fedora by reading the Readme.
I would like to know if it does use systemd and/or other redhat technologies.
In the readme they mention Qt, does anyone know what DE do they use?
I don't think it ships with a desktop environment by default; I think they're just referring to the Qt framework. If it is mentioning a desktop environment - it's probably LXQt.
I know Microsoft gave Gnome a donation of 10.000$ because they use Ubuntu (which use Gnome) and inside the repo (inside SPECS folder) I've seen gnome-commons to build gnoem stuff.
But yes, this is probably a server distro without a DE.
I'd wager it uses systemd considering Lennart Poettering works for Microsoft.
If you follow the links, you'll see that it's essentially a new name for/ release of CBL-Mariner. from the GitHub readme:
CBL-Mariner is an internal Linux distribution for Microsoft’s cloud infrastructure and edge products and services.