It's currently supported by Firefox and Safari [2]. The Chromium team recently began working on it as well [3]. Edge's Platform Status [4] has it marked as a low-priority issue; given the included explanation they'll probably wait for Chromium to finish implementing it and copy them. Please consider taking a minute to vote on the issue if you consider it important.
WCAG 2.1 Level AAA requires that animations from interactions have a way to be disabled [5]. I wish more developers would implement this, although in my case it's just because I generally don't care much for animations.
There's no mention of springs, which is essential for creating animations that feel natural. I remember having my mind blown when I first learned about these animation techniques. Just knowing they exists lets you expand your toolkit, even if you don't regularly work on UI development. "Creating Animations and Interactions with Physical Models" [6] has a superb explanation.
The book references it in passing, but I want to highlight Disney's Twelve Basic Principles of Animation. I was first exposed to them in the wonderful animation: "The illusion of life" [7], and it remains my preferred resource for quickly introducing others to the concepts. They also put up each individual rule as gifs on tumblr [8] if you prefer to skip the video. This is one of those foundational building blocks that you start to notice everywhere after learning about it.
[0] https://developer.mozilla.org/en-US/docs/Web/CSS/@media/pref...
[1] https://webkit.org/blog/7551/responsive-design-for-motion/
[2] https://caniuse.com/#search=prefers-reduced-motion
[3] https://bugs.chromium.org/p/chromium/issues/detail?id=722548
[4] https://developer.microsoft.com/en-us/microsoft-edge/platfor...
[5] https://www.w3.org/TR/WCAG21/#animation-from-interactions
[6] https://iamralpht.github.io/physics/