email change laravel

Controller function:

    public function change_email(Request $request){

        // Validate email
        $request->validate([
            'email' => ['required', 'string', 'email', 'max:40', 'unique:users'],
            'confirm_new_email' => ['required','same:email'],
        ]);

        // User needs to enter password to change email
        if(password_verify($request->password, Auth::user()->password)){
            
            $user = Auth::user();

            $user->email = $request->email;
            $user->email_verified_at = null;
            $user->google_id = null;

            $user->save();

            /* Send verification email */
            $user->sendEmailVerificationNotification();

            toast('Email changed','success');
            return view('auth/verify');
        }

        toast('Wrong password','error');
        return redirect()->back();

    }