That's definitely not true. That is a side-effect of CUPS, but CUPS exists very ...

deaddodo on Aug 4, 2021 | parent | context | favorite | on: Bye CUPS: Printing with Netcat

That's definitely not true. That is a side-effect of CUPS, but CUPS exists very much in the same realm as PulseAudio and other service-enabling frameworks around hardware. It allows software/clients to interface with printers in a seamless and safe manner.