call block features not there in any device under game launcher or game booster it's because of first priority purposes ...you can just set mini pop-up of call
why ? it's because may you all simply updateed your big os by mobile data or wifi where the one and only proper and recommended method is to flash that firmware by Odin or smart switch or through authorized Samsung service center especially when any big os update or new ui interface comes
Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
