I’ve been using Gufw myself for the past 4 years and this is the norm whenever going through a full start up or rebooting.
If you open the Gufw GUI, hit the small “Home Icon” that should be titled “First Steps”, and scroll down to “FAQ” you will see that the Answer to Question Number 2 covers the subject…
run these commands:
sudo systemctl enable ufw.service
sudo ufw enable
sudo systemctl start ufw.service
and it will stay on after a reboot. https://wiki.manjaro.org/index.php/Firewalls
I noticed that I have many services started in the systemctl list.
I’m not an experienced user, however, is there a way for me to check which of these services I can disable? To try to make my system even more optimized and faster?
And, is there any graphical interface that facilitates the use of this feature?
You need to look up each service.
Theres probably lists around, but you should follow them at your own peril.
Only you know if you never want bluetooth to start, etc.
As for a GUI to mess with it … KDE has it:
(and with the GTK versions [systemd-manager] orphaned maybe there is a gnome one now)