Override Permissions for Super Admin

If you've defined your Gates but want to override all permissions for SUPER ADMIN user, to give that superadmin ALL permissions, you can intercept gates with Gate::before() statement, in AuthServiceProvider.php file.

// Intercept any Gate and check if it's super admin
Gate::before(function($user, $ability) {
    if ($user->is_super_admin == 1) {
        return true;
    }
});
 
// Or if you use some permissions package...
Gate::before(function($user, $ability) {
    if ($user->hasPermission('root')) {
        return true;
    }
});

If you want to do something in your Gate when there is no user at all, you need to add a type hint for $user allowing it to be null. For example, if you have a role called Anonymous for your non-logged-in users:

Gate::before(function (?User $user, $ability) {
    if ($user === null) {
        $role = Role::findByName('Anonymous');
        return $role->hasPermissionTo($ability) ? true : null;
    }
    return $user->hasRole('Super Admin') ? true : null;
});