I was using my Meta key to open the Application Launcher. But after mistakenly removing the default top panel it stopped opening using Meta key. I created a new panel, added an Application Launcher widget. I tried setting the keyboard shortcut to Meta, but it won't take Meta key alone, so I tried Alt + F1 and Meta + F1 as suggested in some posts, but still it isn't opening with Meta key.
That's why I would highly appreciate your assistance.
(From Garuda Dr4gonized KDE Plasma)