@Pardus No, there is no setting for this, nor to hide the Quick Settings button, but there is a setting to hide the Privacy Statistics in Settings, Start Page.
It would help if the Close button was in the same position as the Open button.
I use some CSS to hide the button, as changing settings is not something anyone needs on a regular basis.
/*Hide Start Page Settings Button*/
.SpeedDialView-Settings-Button {display: none;}
I would call this a bug, as all other popup windows close when giving focus to the page.
(VB-96926) Quick Preferences on Start Page Should Close on ESC and on Clicking Start Page