It just feels like you have insane precision and connection beneath you. There’s a conscious benefit that you actively focus on where you have really good timing, partly because you're reading balls well off the racket, for flow steps, split steps, and adjustment/shuffle steps. But also for the less conscious thinking that is usually associated with flow states your mind reads the ball and court and just automatically devises footwork patterns and orientations.
Footwork patterns I would explain more as the building blocks you use, from basic like how many adjustment steps do I need before reach the ball, obviously 1-2 closed stance to unload on the ball and claim some initiative. Another pattern ok maybe like it's slightly angling on the deuce and I want to cut the angle off but still keep some open stance so I can recover there's one for that no not just on the run forehand this specifically is like an amended version because you're caught awkwardly more inside the court and say coming further from the ad so you can't take the a full on the run cut because you don't have the spacing and it becomes about balancing getting the power from the transfer will also managing your hips to stay open as you can which is a tricky blend. Can't think of it without a racket in my hand rn it's niche
Anyway that was a tangent footwork orientation in my mind is more about the real subtleties about your feet in three dimensional space (more or less 3D, nobody is putting weight on the outside edge of a foot). Some examples might be like ok I'm behind the baseline and sliding wide to hit a forehand slice, this guy likes to go short when I'm dropped, so I slide for the FH slice and I'm dragging my toe box and I might bring it about to catch some of my big toe/ball of foot edge, one variable would be how much I'm catching, another variable would be timing would say more often you would do that towards the latter half of the slide and then it prepares to burst forward better than just toe box drag. Same thing slightly different I'm moving in the FH slice slide again maybe I watch it cop a bad bounce knocks a little bit of pace off or maybe I just misread it and my initial pace was wrong, like then I'll round it about early so I can come big toe edge which makes sure I don't overrun the ball mess up my spacing and jam myself. One thing about toe box drag is that nobody ever seriously applies pressure down strict toe box drag is just a balance thing but if you catch part of that big toe edge you can increase the friction with pressure and actually have an active affect on how fast you're moving. You could get the heel involved doesn't have to just be with the big toe, if your angle is moving slightly backwards in the FH slice slide example the side of your heel might be more important than your big toe/ball of foot edge. This is where the 3D stuff comes into place it depends.
Another situation say my opponent transitions comes to the net, I think I have enough space so I go to dip at his feet, ball clips the net and they have to difficultly adjust say they switch instead of hitting that low volley they then punch a FH slice deep. The issue is I was anticipating post-low volley but since they adjusted now I have to difficultly adjust to this now deep punch slice. So like say on the backhand side I gotta get backwards ASAP so I crossover step into a kind of drag step/shuffle and then here's the orientation part, yeah I bend my back knee that's the big thing but I'm not just leaving the sole of my front foot completely back, for starters because you need more flexibility and it's just a harder movement for almost no reason and almost nobody has the mobility strength in that much stretch I would say (well why don't you just bring you feet closer together why do you have to go so far out? because I want a low base when I can get it). Anyway you're moving backwards after the crossover, drag shuffle, and then slide on the backfoot, bend the knee to get low and then I have to lift the outside edge of my forefoot up and drag the inside edge, again here part of orientation you can adjust your speed how much pressure do you want to apply to that inside edge to go slower. And part of this footwork flow and the orientation subsection is being really in tune with how much applied pressure is necessary and what the output is, and then knowing so much that you can recognize a bunch of different speeds and match pressure to those speeds. If they hit a crazy low slice, maybe it's just a great shot, maybe this is because you're playing on grass (though I wouldn't know, never played) means you get crazy low on the backfoot and a lot more importance upfront because now you have to lift your forefoot outside edge all the way up which brings a lot of bottom sole contact off the ground so you're really biting into the ground with that inside edge. Weight's not dispersed over as large a surface area so you have to balance on a really fine point, that's one consideration and then there's slowing down and adjusting to the ball as it comes, you especially have a lot of play with that here because you have so much edge on tap to pull from. Say maybe this whole thing is actually over a topspin forehand or a topspin backhand (everything else same situation you're still caught and then gotta get back ASAP as a ball gets punched deep) you're not gonna be as low to the ground because you don't have to be so it's not as extreme, maybe you only put a touch of weight on a little bit of inside edge, just a pulse, for balance depending on if you feel like you need it.
I would include intelligently manipulating your hips to bait someone to go a certain direction as well, lot of good defenders use that and understanding of opponent tendencies. Anyway this stuff is big for clay (wouldn't know grass) and big points because that's when you get put in those tricky positions and creative orientation out of the corners lets really good, creative movers steal absolutely colossal points. And I can't recognize this stuff on a TV screen or hardly on another person's body but in that second set when Sinner just
seemed vulnerable Carlos went into that confidence and higher gear I was talking about with
@ibbi, immediately some of those points stood out like there was just some intangible difference with his movement and it was marginally crisper, quicker, intentional, and elite. And marginal goes a long way, that's how he stole some of those points that otherwise wouldn't have happened and accumulated points for his lead and eventually helped led to that breadstick, the significance of which has already been discussed
@Kralingen you like sports read my effort pls dunno who else would be interested maybe
@tudwell