What is the magic - npm not found?

Question

macOS

Installed node.js
node -v successfully gives v12.18.3
npm -verror: npm not found
The magic is that node and npm are in the same folder /usr/local/bin, the path of which is registered in $PATH
only npm for some reason is not available.
I tried LTS and Current versions, reinstalled, restarted the machine, the result is the same

Answer 1

the problem was in crooked aliases in another application, which created a conflict

Answer 2

Probably there is no path /usr/local/bin in PATH