That it kind of the thing tho, if you just violently smash your sword around, it's gonna break. Like katanas are pretty flimsy and a german greatsword for example could just snap it off. Let's take elden ring for example and you use your sword to find an invisible wall, that's terrible for a sword and it would go to shit really quick. So i guess in a way it's realistic. But i really don't like it when games do that. All it does for me is that i'm never going to use the nice things in the game, because they break, then you need a new one or repair it or whatever.
I'm fine with encumbrance... especially in these Bethesda games. All they do is litter the world with garbage for the player to pick up and carry around for no reason other than make the game longer.