I think we are having the classical language barrier - where trying to use the correct words results in words which are over excagerating the topic at hand.
I dropped Gnome a couple of years ago in favor of a Openbox window manager environment.
Gnome has all the necessities default installed and enabled.
The list of services which is default enabled:
enable_systemd=('bluetooth' 'ModemManager' 'NetworkManager' 'org.cups.cupsd' 'tlp' 'avahi-demon' 'haveged' 'ufw' 'apparmor' 'snapd.apparmor' 'snapd' 'fstrim.timer')
First screenshot from a default gnome live ISO with classical layout enabled
After powering up the in-house access point and reloading the printer settings in gnome-control-center the printer attached to the wireless was found as well
Second screenshot from a default gnome live ISO with classical layout enabled
Because Qt based and GTK based system uses different apps for managing printer this package is not installed and because gnome-control-center provides the printer installation interface.
The 'old-school' printer config applet can be installed - or you can use the cups webui at https://localhost:631
sudo pacman -Syu system-config-printer
then launch the app or look it up in the menu Print Settings
- Unlock using the in upper right corner.
- If cups is not running the app will ask to enable and start cups.
If unlocking don't start the service - then enable and start it - I don't think it is necessary as the official editions comes with cups enabled.
systemctl enable --now org.cups.cupsd
Go from there ...
And as I mentioned earlier - printing to pdf (to file) work without cups - if I remember correct.
A last note on printer discovery - if the printer is a networked printer - just expand Network printer - do not click on Search Network Printer unless you know it is a part of a Windows AD requiring credentials to connect.
You may want to check if the system-config-printer package is providing functionality which is lacking from gnome-control-center. I any case - it appears not to be needed as setting up printers work OOB.
Just got caught up in browsing the Gnome experience - congratulation @Manjaro-Team - this is the best Gnome experience I have seen since I was a Gnome user.