it's part of the Material Design 3 branding, for some reason. The original thread for the launch of the design system [1] is full of people baffled by Google making a cursor that lags

[1]: https://news.ycombinator.com/item?id=43975352

Look at all the rubes who can't understand that a lagging mouse cursor is an integral part of Google's Molasses-Forward Design Language Initiative.