Switch App Windows Directly in Windows 10 Taskbar Without Clicking on Thumbnails

How To Switch App Windows Directly in Windows 10 Taskbar Without Clicking on Thumbnails

In Windows 10, the taskbar button grouping feature is turned on by default. In this mode, clicking on a group button makes it show a list of window thumbnails. You can make  the taskbar switch to the last active program window in the group with a single click.