Flatpak is another good example besides selinux. You as a user have to be up to date how to install packages. You have to install flatpak yourself. I trust that you are up to date enough, but many people lack time and especially interest in how the system works. Many people don’t care as long as it works. On arch you have the freedom to do everything but you have to take care of a lot of thing on your own. E.g. fedora makes a lot of decisions for you. You do not have to read about firewalls, you can, but you don’t have to. On arch I highly advise evryone to read what a firewall is and then decide which firewall to use and set the right settings. Arch is not bad but it’s not for the average person who doesn’t read readmes and guides and that’s ok