That's a mixed bag. Have a look at the linked https://m3.material.io/blog/building-with-m3-expressive to get a better impression of what this is about. From the guidelines given there, many parts of the design make sense and will help designs work better - grouping objects properly, be aware of contrast to highlight important elements, more options for good typography (instead of basically none, Android/Material offe…
WHY that page results, in recent chrome with all sorts of hw acceleration, on powerful laptop, to suck over 6 cores of cpu. As in, Chrome's internal task manager shows over 600% cpu use.
I have less cpu use playing recent-ish AAA game with maxed out details in 4k resolution