Even with the lack of smoothnes caused for the mismatched framerate video, there should be some perceptible level of consistency. With reduced settings and very close to 60fps you can see that real smoothness isn´t there:
Very close to is not 60FPS. In order to eliminate the uneven framepacing on non VRR displays your framerate must match an integer multiple or division of your refresh rate
exactly at
all times. Too low and you have frames persisting for 2 or more refresh cycles. Too high and you have uneven motion between frames causing the motion itself to appear stuttery even though you are seeing a new frame for every refresh cycle. Again, it must match
exactly. That doesn't mean close...that means...exact. And I really mean
exact. Unless you have a VRR display it should be locked using vsync. Anything else will suffer from this. Unless you can't avoid it you shouldn't use framelimiters, because they're just not precise enough (although RTSS is close). And again, you cannot judge framepacing of anything other than 30/60FPS locks from a 60FPS YouTube video. If I record anything running on my machine you're going to say "that real smoothness isn't there"...and looking at the video you'd be right...but not if you were looking at my screen while I'm playing because I'm not using a 60Hz monitor. I'm really starting to doubt you game on PC, because you really ought to know this shit.