What exactly do the libraries provide? When I use state machines, if it’s small, a switch is all you need; and if large, the State pattern is great. Ie, what am I missing out on?

The main challenge for me is when a given state comes with a “Tick” method that gets invoked via current_state.Tick() - Eg, in an update method in Unity. This makes them a tiny bit more hairy to work with, and I am not certain what the best practice is to keep this very simple.

I know bob martin has a video course on creating a custom compiler to generate state machines from tables. That seems neat too