Mainly in folders. Main page has the time, icons for the clock and camera; smaller icons for phone, contacts, email, whatsapp and SMS; folder for games; folder for travel.
Other stuff is in the second page and also organized in folders. I keep the lantern off-folder for aesthetic reasons: three folders left me with a space (what?). The smaller icons also repeat here but that’s a feature of this particular phone model.
But I do similar things on my computer desktop (there are at most three four columns and two partial ones) or on my physical one (yes, lots of items, but anything pile-able is piled up when not in direct use).