Weird, I just read the docs and none of the comments seem to relatr. The guidelines from an app with hierarchy is to have back and up buttons one all pages but

Weird, I just read the docs and none of the comments seem to relatr. The guidelines from an app with hierarchy is to have back and up buttons one all pages but home, up is on top left, back is in nav bar, bottom left, and this even when they point to the same target. Back is about click history, up is about information architecture. It makes sense.