In Fluent Design System, this effect is called Reveal
https://docs.microsoft.com/en-us/windows/apps/design/style/reveal-focus
However, in the latest version of Windows 11, this description has been deleted. In fact, there is no recovery timetable for the time being
https://github.com/microsoft/microsoft-ui-xaml/issues/4011
in Windows 11，the hover effect looks like this
No matter which effect you use, it is very good, but now this kind of effect, I can only say, emmmm......?
What？？？？？？？
