The Linux, GNU/Linux, and BSD ecosystem in general. Since most applications are portable between distributions, an improvement made by one vendor will eventually propagate through everything. A new feature in KDE Plasma will appear both in EndeavourOS and Kubuntu. A security fix in OpenSSH (which is maintained by OpenBSD) will appear in literally all distributions and even Windows.
Ummm which 1337 distro we talking about, friend? There’s only one line.
Linux itself general
The Linux, GNU/Linux, and BSD ecosystem in general. Since most applications are portable between distributions, an improvement made by one vendor will eventually propagate through everything. A new feature in KDE Plasma will appear both in EndeavourOS and Kubuntu. A security fix in OpenSSH (which is maintained by OpenBSD) will appear in literally all distributions and even Windows.