Created attachment 188340 [details] Screenshot This UI when maximised is not nice to use. It needs to be a maximum size, not scale as big as the window.
For Plasma 6.6 this dialog has been reworked and it is now its own window, with its own maximized state. I personally don't see much issue with allowing that specific window to be resized to whatever size the user wishes, as that potentially allows descriptions to be fully visible.