https://wccftech.com/xbox-series-s-x-dolby-vision-support-2021/

High Dynamic Range lighting is becoming more than just a buzzword used to sell newer television displays or talk about lighting in tech demos. As the technology has evolved over the years, it's become more prevalent in gaming with a large number of AAA studios starting to include HDR lighting in many of their games. However, that has typically been a case where the technology used in gaming has been held back by the latest innovations in the technology. Today, Dolby has announced that their Dolby Vision HDR technology will be making its way to console gaming: exclusively launching on the Xbox Series S and Xbox Series X, other platforms to follow.

PlayStation 5 Former Principal Software Engineer Suggests Next-Gen Games Frame Rate Could Be Constrained By HDR and TVs