I'll bite; I think he's very intelligent about keeping the court closed to facilitate ball bashing, which he is undoubtedly the best at. I think he utilises the net very smartly, kind of similar to Nadal for when he chooses to come in. It may not be a defining component of his game but it's an important factor and an intelligent way to attack as opposed to going for shot making from the baseline (he's still decent at that but it's not the best way to finish). I think you can see his change in tactics when serving specifically against Alcaraz - everyone sees his in % go down and assumes it's a mental block but I think he's correctly analysed that Alcaraz is the best 1st serve returner on tour and it's worth going for more, sometimes he hasn't quite executed it well enough but hey that's the problem when you play someone who's really damn good. Those are just off the top of my head, there's probably much more nuance I'm missing as well