Some options (e.g. grouping) don't apply immediately for modern apps in Windows 10

Multiple instances of Edge don't have an icon when grouping is disabled

"When not grouping, place new items next to the existing ones" option doesn't work for UWP apps

Some options (e.g. grouping) don't apply immediately for windows in different virtual desktops in Windows 10

Windows 10 is not supported

Incomplete support for taskbar buttons of Metro apps (Windows 8.1 Update 1)

Incomplete support for taskbar buttons of Metro apps in Taskbar Inspector (Windows 8.1 Update 1)

Item width on multiple rows