OTOH do not forget that Arch is a family of distros now, not a single distro, just as Debian is.
In fact I suspect that it is the 2nd biggest family of distros, after Debian.
Debian encompasses many dozens: Ubuntu, plus dozens of Ubuntu derivatives including Mint, Elementary, PopOS, ZorinOS, Linux Lite etc.; LMDE; Devuan; MX Linux; SpiralLinux; etc. etc.
OTOH do not forget that Arch is a family of distros now, not a single distro, just as Debian is.
In fact I suspect that it is the 2nd biggest family of distros, after Debian.
Debian encompasses many dozens: Ubuntu, plus dozens of Ubuntu derivatives including Mint, Elementary, PopOS, ZorinOS, Linux Lite etc.; LMDE; Devuan; MX Linux; SpiralLinux; etc. etc.
Arch now encompasses at least Manjaro, EndeavourOS, Garuda and more. https://wiki.archlinux.org/title/Arch-based_distributions
But that is not the point.
The point is that _tens of millions_ are running non-Debian-derived distros, mostly ChromeOS and CloudReady/ChromeOS Flex.
Offering a .deb package is _not_ a useful approach to offering a generic Linux package, no.