In order to hide hover cards for inactive apps in taskbar of Windows 11, go to Settings > Personalization > Taskbar > Taskbar behaviors > Uncheck “Show hover cards for inactive and pinned taskbar apps ...
HowToGeek on MSN
I Customize These 7 Settings Right After Installing Windows 11
I've been using Windows 11 for over two years now, and during that time I've customized it in many ways to work well for me.
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