I doubt most games would run higher. Especially because most games dip down to mid 20's half the time. The only games that would really work are COD and R6S because they already run at 60FPS. Many people play those games but no I do highly doubt most games would be able to run much higher consistently.
Not sure you have a PS4 or a PS4 Pro, but considering I have both and how loud the damn things are in any game that pushes the console really hard(like IP titles) makes me doubt it very much. A PS4 user is basically screwed they aren't getting much use from VRR. Pro users? They are the only ones who will benefit but not sure it's entirely going to be widespread for older games. Newer games I can see because they have that target in mind.