Deactivate Wizard popping up on first login
Solution 1:
I just happened to search on and eventually finding the right keywords. The solution can be seen on https://www.putorius.net/disable-gnome-initial-setup.html
In a nutshell simply create the correct marker file like
mkdir ~/.config
echo "yes" >> ~/.config/gnome-initial-setup-done
The other page also mentions how to deactivate the wizard for all users (current or future).