I’m currently playing Spider man 2 and trying to explain it without spoilers is a bit tough.
They done a decent job combining Peter and Miles story but their story isn’t the main one. Main one is Venom, second is Peter and then Miles.
Miles isn’t per se more interesting within the game unfortunately. Still the same Miles that’s trying to learn from Peter. However Miles abilities are much more interesting in my opinion.
I hope if and when Spider man 3 comes, the story will be more about Miles about his past and how he develops as Spider man.