I agree with most of the article, but would clarify the following: > For the screen to look smooth, frames have to be drawn at the display’s refresh rate. On the most common 60Hz display, that means 60 frames per second, or about 16.6 milliseconds per frame. It isn't absolutely necessary to match the display refresh rate. With a 144Hz monitor, 72FPS is going to look smooth for the vast majority of the people, and eve…
Below a certain threshold things are certainly going to look janky. But you’re right you don’t have to match the screens native refresh rate. More important is that you have a consistent frame rate. If you can’t hit 120hz, it’s better to target 60hz, rather than 120 a miss your frame budget. 30fps will also look better than 60 but regularly dropping frames.
But importantly, if your screen is variable refresh rate or high rate enough compared to your typical performance, that greatly reduces the inconsistency. Go ahead and vary between 55 and 70 if the screen is at 165. Definitely don't drop to 30 and I don't think you want to drop to 41.25 either.