arrow function & setTimeout scope

Question

I'm following this tut on js: https://www.youtube.com/watch?v=ajTvmGxWQF8&list=PL1PqvM2UQiMoGNTaxFMSK2cih633lpFKP&index=8

and in the part where he explains why not to use setTimeout with arrow functions, the justification is that they look for scope on the window. and not on the enclosed scope. But the tests i made, had the opposite results: the named functions had window, arrow function was the correct one. So:

const dude = {
  name: 'dude',
  namedFunc() {
    console.log('name 1: ', this.name); // Dude

    setTimeout(function() {
      console.log('this 1:', this);
      console.log('name 2:', this.name); // undefined
    }, 200);
  },
  arrowFunc() {
    console.log('name 3:', this.name); // Dude

    setTimeout(() => {
      console.log('this 2:', this); // {name: 'dude', nameWNamed: ƒ, nameWArrow: ƒ}

      console.log('name 4:', this.name); // Dude
    }, 300)
  }
}

console.log('namedFunc:', dude.namedFunc()); // Dude
console.log('arrowFunc:', dude.arrowFunc()); // Dude

Expected:

this 1: {name: 'dude', namedFunc: ƒ, arrowFunc: ƒ}
name 2: dude
this 2: Window {window: Window, self: Window, document: document, name: '', location: Location, …}
name 4: 

Actual result:

this 1: Window {window: Window, self: Window, document: document, name: '', location: Location, …}
name 2: 
this 2: {name: 'dude', namedFunc: ƒ, arrowFunc: ƒ}
name 4: dude