The stronger you become, the more variety you can have in the workouts.
You can choose more challenging exercises and make easier exercises more challenging.
You’ll also have better body control and can rely more on your body weight for resistance, so you can get a workout done anywhere with zero equipment.
Ironically, when you reach that point with your strength and have all the options available, you’ll likely be more content with less variety. You’ll probably have a set of exercises you like to focus on and improve at.
But it’s kind of nice to know that you could do anything if you chose to.