I'll show you how to add an End Task menu item to every running task on your taskbar. Also: Have a Windows 10 PC that can't be upgraded? You have 5 options before support ends next year ...

Close a non-responding program directly from the taskbar! Add End Task to Taskbar Context Menu of Windows 11 using Settings, CMD or REGEDIT.

Third-party mod adds a hint of Windows 12's flavor and Tiling Windows Manager for multitasking to Windows 11.