He is a good bit taller than the other two. Do all his frames look like that? I may peek at that in future browsing.
I saw something a few days ago commenting on JV and Roglic using a single chainring on some stages while Sepp stuck with a double. Lots of little choices.
There was also an interview with Remco before one of the last mountain stages asking about his gear selection and why he was using a specific one unlike the others who were choosing whatever (maybe 34-34 vs. 34-36, IDK). He asked where did you get that information and then sort of smugly (in a good way) said nope, I'm not using that, I'm using the one like everyone else.
So many finicky little things to keep the mechs up at night.