Dell leaves that space free (like this new MacBook Air) and instead has pgup/down, Pos1/End as secondary functions on the Fn-(Up/Down/Left/Right) key combos. I really like how that puts all navigation keys in one place.

I have used Acer, Dell, HP, and Lenovo. Lenovo swaps the FN and CTRL compared to everyone else, cannot stand that keyboard as it messing with muscle memory. After moving from a Dell XPS-13 to a HP Envy 13, HP has the best keyboard experience on a laptop. Having the PU, PD, END, HOME as a separate column on the right makes life grand, no FN + action needed to use some of the most useful keys when reading or viewing content.