>>712464770Areas are both vertical and horizontal. So if you considering holding left or right and pressing jump, platforming, then yes there's a lot of platforming.
Following, many of these sections are full of enemies, so it helps to be able to jump accurately while fighting.
Besides that, there are only like 4 sections I can think of that require any actual platforming (AKA long lengths of timing jumps and abilities), all of which become much easier the more abilities you lock, almost all of which are optional anyway.