What do you mean by “software support”? All I can think of that would be relevant is things like firmware/BIOS security patches. Honestly most people never need or get even that. But even if there’s an unpatched rootkit opportunity (which is unlikely to be practical to invoke), everything else in the stack can still be modern and patched, featurewise and securitywise. I’d say that’s normally good enough.
But even if we allow that, that’s a completely distinct topic, and my point stands; your Python/Ubuntu comparison was still clearly unreasonable.