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.
I generally agree, though "consistent" can by varying levels of strict depending on the tradeoff you want.
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.
