The upgrade comes thanks to long-expected support for HEVC in Apple’s web browser. You won’t have to switch to another browser just to see more than a plain 1080p image. As 9to5Mac reports, users have discovered that Safari in Big Sur will play Netflix videos in 4K with HDR, whether you’re using Dolby Vision or HDR10.
MacOS Big Sur may be a worthwhile upgrade if you love to marathon TV shows.