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 ...
As a writer who takes pride in, y'know, writing his own work, I don't have a whole lot of use for Microsoft Copilot. Sure, if you need an unimportant document summarising it's probably pretty handy, ...