The code actually would fetch more pages until it starts scrolling to fill up the screen, but only of course if there are enough results to show: https://git.cloudron.io/platform/box/-/commit/b53da61e7cec3c919ac11ebd65a8ccce03f7f611
Maybe there is some other bug you are hitting, here on this screen if I change page size to 5 it fetches about 20 pages