[curiousmindz]

The analogy with Chess does not work: I can go on YouTube to watch how a pro player beats a specific boss, then use that to massively shorten how long I need to beat that boss.

Watching a lot of grandmasters play Chess will minimally help me beat a Chess AI that was better than me (excluding the beginner level).

I think that someone could have fun playing a Diablo-like RPG because they enjoy feeling powerful while they mow down a lot of enemies. And someone someone could enjoy a Soulslike game for the precision they need to apply to beat a boss.

Maybe it is somewhat similar to the difference between an arcade/fun racing game and a professional track racing game.

I wouldn't consider one to be "better" than the other. They simply have different objectives.