On the bed-size issue:
Most of the pickups in my area, and nearly all of the working trucks, have an aftermarket tool box mounted behind the cab.
View attachment 480755
Like this one, most don't go all the way down to the deck, so you can still slide some lumber underneath.
That said, moving this storage into the locker underneath the bed (like the Honda Pilot) makes the Cybertruck's 6.5' bed more usable than most, and reduces the need for a long bed, for some folks, to some degree.
Anecdotally, most of my p/u friends prefer the looks and maneuverability of a short bed on a crew-cab truck. Those that have a long bed, just can't handle the size of a 6.5' box MINUS the bolt in tool storage.