Created attachment 171507 [details] Menu in question (Window management -> Task Switcher) "Show Desktop" was renamed to "Peek at Desktop" to distance from the identically-named-but-not-identical-in-function Windows Show Desktop, but looks like the terminology on this menu hadn't been updated (unless, of course, it's intentional and/or is actually a very similar looking feature that I mistook for 'Peek at Desktop').
There is definitely a naming mismatch between System Settings pages, keyboard shortcuts, and other parts of theUI. This would understandably cause confusion The taskbar icon tooltip is "Peek at Desktop" In Task Switcher, the shortcuts for All windows -> Forward and Reverse are Alt+Tab and Alt+Shift+Backtab Searching through Keyboard ->Shortcuts: - There is "Peek at Desktop" - There are no entries for "Task Switcher" - Searching for Alt+Tab brings up KWin->Walk Through Windows Searching through System Settings - There is no "Peek at Desktop" - There is "Task Switcher" In the Widgets search - There is "Peek at Desktop" - There are no entries for "Task Switcher"