The official Arch repositories are enormous. And all packages are unaltered from upstream, with default configuration and few backported patches. And for many

The official Arch repositories are enormous. And all packages are unaltered from upstream, with default configuration and few backported patches. And for many people I think rolling release is just preferred. Your software will always be at the newest version. This is especially relevant for people who play games or software developers. Arch has the biggest rolling release repositories with fast updates and good tooling. Arch also has the AUR which holds package build recipes creates by regular users. You can manually build/install nearly any software from the AUR. Though as a Manjaro users there's no guarantee AUR packages work. The way Arch maintaines that many packages, is that most packages are maintained by Package Maintainers (formerly Trusted Users). They are responsible for keeping their dedicated packages up-to-date and working. You can view the build recipes at https://gitlab.archlinux.org https://gitlab.archlinux.org.