How is NPM more reliable or easy to use than rubygems? In my opinion Rubygems (with bundler) was the gold standard, and maybe now Cargo (Rust) or Stackage (Haskell) has stolen its crown.

Python package management is a drama, but I've heard Java developers defend their system, forgot if it was maven or gradle.

My main issue with NPM was belatedly solved when Yarn came out. The whole node_modules thing makes me consider it inferior to the others I mentioned, but I'm not sure it can be called a problem.