An open secret on the PC gaming world is that 4K TVs double as great PC monitors. Or potentially great, anyway. Big-screen gamers have lived with many a compromise, if only to play Overwatch or Battlefield on a 65-inch display at resolutions that living room game consoles can still only dream about.
 
But now, thanks to the new HDMI 2.1 specification, future TVs could eliminate -- or at least diminish -- many of those compromises. The greater bandwidth possible with 2.1 means higher resolutions and higher framerates, but that's not all. The Game Mode VRR feature could potentially improve input lag, bringing TVs in closer parity to computer monitors for this important spec. It could also remove, or at least reduce, two serious visual artifacts: jutter and image tearing.
 
 
https://www.cnet.com/news...ing-even-more-awesome/

Cool GTX
 if only they would add it to TVs along with DisplayPort

The VRR feature is almost exactly the same as G-sync/Adaptive sync. They are doing as you command ;)