I wonder how much of Python popularity is because it is installed by default in all major Linux distros. This effect is identical to "windows popularity is partly because it is installed by default on most laptops and computers and people don't bother to change them".
This affect have been also observed in Steam Deck where it is shipped with Arch+Plasma, but users can install Windows if they want to. But a big majority don't. I remember Joe Ressington (npub1a2n…y08n) mentioned this in an episode of #LateNightLinux