One of the most fun things about new versions of Android is seeing all the new visual bling Google builds into the operating system. One such example was spotted by developer @kdrag0n, who managed to get it working on Android 12, Developer Preview 2. It's a more busy, "noisy" animation for tapping a standard interface item.
The ripple animation is documented as a new part of the RippleDrawable animation style first added way back in Lollipop (5.0). It shows a more scratchy animation pattern centered on the main tap point, rather than more broadly highlighting the entire interface item. You can see a demonstration in the short video below, along with a "bounce" overscroll instead of the slight shadow or highlight usually seen in AOSP:
