Do married couples really stop arguing about the same things eventually, or is that just luck?

I’ve always found this intriguing. My parents and some friends have been married for quite a while, and I can’t help but notice that they still have their share of arguments, though it seems like they’re bickering about completely different things than they did when they first tied the knot. Is it normal for the topics of conflict to shift over time? Or do most couples find themselves stuck in the same old arguments forever?

I’m really curious about this because I’m not sure if it’s something that people learn to navigate better, or if it’s just a matter of luck that some disagreements fade away while others linger. Do most people notice a pattern, or is every marriage just a unique journey with its own set of challenges?