If you apply a shader pack like Luninous Dreams to captilize on the render dragon features in the Preview editions of Minecraft PS4/PS5 the Deferred rendering menu is not avaliable under Video. To access such pack you'll have to create a realm on mobile Beta or Windows preview and apply a such a pack before downloading it to your playstation console. The process is a bit lengthy and I doubt this issue effects anyone but a few people, it would be greatly appreciated if fixed. Thank you for your time and consideration!