$MASKS

Face with Medical Mask Emoji on different platforms
This emoji depicts a round yellow face wearing a white surgical mask. Most platforms initially depicted it with sunken eyes and a slight frown, indicating that the emoticon was feeling upset or upset. However, in November 2020, with the release of iOS 14.2, Apple made a surprising change to the wording behind the mask, replacing it with the same wording found in the ☺ emoji and giving the 😷 emoji a more optimistic feel. This change was made to reflect the widespread use of masks during the COVID-19 pandemic and to convey a more positive attitude. After that, other platforms such as Google and Microsoft also changed their designs in the same way.
Resource: https://www.emojiall.com/en/emoji/%F0%9F%98%B7