It's not that Path is complicated to understand, it's more of just a big annoyance when you just want to install something. -And this annoyance crops up every time you want to install something outside of the repo. It's not beginner friend, it's not even intermediate friendly: It's a Unix internals concept that no end-user should have to know!

The problem is minimized in distros like Mint, because of their huge repos, but Mint's repos are also full of abandoned (danger Will Robinson) apps!

The problem exists because Linux lacks unified packaging, and consistent install locations (instructions are different per distro!)