2 super admins deleted at the same?

If someone is trying yo solve similar problem you could try this. A partner helpme to solve this

public function destroy(DeleteRequest $request, User $user, StatefulGuard $guard)
{
    DB::transaction(function () use ($user, $guard) {
        $actor = $guard->user();

        // We pull the actor and the affected user with a read/write lock to
        // avoid race conditions.
        $users = User::whereIn('id', [$actor->id, $user->id])
            ->lockForUpdate()
            ->get();
        $actor = $users->find($actor->id);

        // $actor will be null if another user deleted this $actor first
        // while we tried to delete another one. We return 401 because
        // the $actor doesnt exists now.
        if (null == $actor) {
            abort(401);
        }

        $user = $users->find($user->id);

        // $user will be null if another user deleted it first so wi will
        // return 404.
        if (null == $user) {
            throw new ModelNotFoundException();
        }

        // User should be able to delete itself.
        if ($user->id == $actor->id) {
            abort(403, __('parser.cannot_delete_your_self_as_super_admin'));
        }
        
        try {
            $guard->setUser($user);
            $guard->logout();
            $guard->login($actor);
            $user->delete();
        } catch (\Exception $e) {
            abort(403, __('parser.cannot_delete_user'));
        }
    });

    return response()->noContent();
}