I have been programming with node for the last 3 years and I never had any dependency issues with node (at least for 3rd party dependencies). I cannot say that with python that requires using some tool be it docker or virtualenv to isolate them from the already installed ones.

Node's dependency managers npm/yarn just copy the versioned dependencies from their cache folder into the local node_modules folder and remove transitive dependencies duplicates when possible by flattening them into node_modules.