Gentoo on a frame.work 16 laptop

Not really wanting to join this discussion, nor am I making any value judgement on the original topic... However, not sure your analogy makes the point you want.

Python 2 -> 3 was difficult, but there was still a lot of compatibility. It was still essentially the same language, much of the core language remained the same, just updates of libraries and APIs largely. The transition has largely succeeded, many code-bases successfully transitioned, and python3 didn't cause /too/ much pain.

Perl 5 -> 6: 6 is very different (AIUI), not at all compatible. Perl 6 appears largely to be a failure from what I can tell - and Perl has generally become irrelevant (certainly, nothing what it once was in terms of relevance).