On the contrary, distributions are here to stay and they are growing their adoption on many platforms including hi-end "IoT" and cars.
No sensible organization runs bleeding edge OSes on their airplanes, power plants, payment processors, industrial plants and so on...
This also applies to not pulling random packages from random github repos using some language-specific package manager hoping they don't contain backdoors.
Case in point: the CIP project https://www.cip-project.org/ aims to backport security fixes to Linux for 25 years after each CIP-approved release. This is because people expect to run the same kernel/OS for 30+ years.