I do think the biggest issue of this game was the difficulty curve, the red area is basically a tutorial of sorts, really just meant for the player to get their bearings, however I think it should have been harder, scaling with the difficulty spike you’re referring to.
to answer your question, though, the first jump in the b&w section is meant to be done by starting your movement in the descent of the jump. though I’m not sure what the second jump you’re referring to is, the majority of the jumps are just precision