People wait in a line to enter “The Lab,” a “Stranger Things” Netflix series experience in Madrid on June 2, 2022. Beata Zawrzel/ | Nurphoto | Getty Images Netflix’s cheaper, ad-supported tier has reached 70 million global monthly active users two years after it was launched. The company said Tuesday more than 50% of its new sign-ups are for ad-supported plans in countries that offer the option. Netflix said it