How much does adding somewhat frivolous animations to an OS matter? I’m not sure, but I do know that users of Windows will be very vocal as Microsoft experiments with adding them to Windows 10.
In Windows 10 Redstone 5 (due fall 2018) I expect Microsoft to continue to refine, improve, and make more consistent UI elements in Windows 10. That includes adding more animations to simple behaviors like the Action Center, but I can already see push back.
I know that especially among the kind of people who read OSNews, “animations” in UI design tends to be a very dirty word. I very much do not belong to that group of people, since I adore proper, well-thought out use of animations in UI design, such as the fun little touches in Material Design, the pivots and slides in Windows Phone’s Metro, and yes, the brand new flourishes in Microsoft’s Fluent Design, which is currently making its way to Windows 10 users all around the world.
I’m fine with being in the minority here on this one – to each their own.