Agreed. The OS shipping version is not a thing in every single language I've been working with. It's either outdated or not the version my project needs, and what if I need many different versions for different projects?

I always use a language manager for Elixir, Erlang, Node, PHP, Python and Ruby, either the language's usual one or asdf. I'm even using different versions of databases, usually with docker. Java is somewhat easier to deal with, unzip in a directory and set JAVA_HOME but I'm not working much with it so I could miss some nuances.