Games that let you limit refresh rate lower than what your monitor can do, does prevent tearing and VRR isn't even necessary. I could be glossing over a few edge cases, but most games I play today support in game limits and I replaced my Asus GSYNC with a Samsung 32" non-gsync and I 1) play without Vsync 2) use in-game limits 3) never get tearing or input lag.
Could be there are other benefits, but I absolutely don't miss Gsync. I can actually enable Gsync now with latest drivers, but I see no benefits, in fact enabling FreeSync on my Samsung messes with/lowers the brightness for some damn reason, so there's just no reason for me to enable it to use it in Gsync-compatible mode.