Why parent class Method2 can’t be overridden?

class MainClass {
    constructor() { }
    
    Metod1(){
        console.log('MainClass.Metod1()');
    }
    Metod2 = () => console.log('MainClass.Metod2()');
}


class СhildClass extends MainClass {
    constructor() {
        super();
    }
    
    Metod1(){
        console.log('СhildClass.Metod1()');
    }
    Metod2() {
        console.log('СhildClass.Metod2()');
    }
}


let child = new СhildClass();
child.Metod1();     // => СhildClass.Metod1()
child.Metod2();     // => MainClass.Metod2()