Hide plugin menus or any admin page If you want

hide_menu.text

function hide_admin_menus_for_all( $context ) {
		// Core Menus
		remove_menu_page( 'index.php' );               //Dashboard
		remove_menu_page( 'edit.php' );                //Posts
		remove_menu_page( 'upload.php' );              //Media
    //etc.
	
		// Plugins
		remove_menu_page( 'plugin-page-slug' );
	
}
add_action( 'admin_menu', 'hide_admin_menus_for_all', 10, 1 );