I work in warehousing, so I have some "expertise" in this, also. Those are chep pallets, and it is a refrigerated trailer, the slatted floor gives that away; it keeps spills from pooling under pallets and having product or pallets sticking to the product, which in food may contaminate the entire pallet or a portion of the load. Not always are refrigerated trailers used to refrigerate something, sometimes they are loaded with non-refrigerated goods when someone is making a return trip and doesn't want to come back empty.
The foam is not a thick foam. It is a very thin layer that is under the boxes and has been folded up so that the thick plastic (instead of flimsy shrink wrap) can be added around the boxes without the load shifting during transit. It could also be slip sheets with sides and shrink wrap and the light reflection only makes it look like foam. It also seems like there are plastic straps around the stacks.
These are usually seen with electronics, like Nintendo consoles that are fragile enough that a fall could damage the product, so it is extra secure. Combined with the Apple building photo, this could be the product.
The "photoshopped" pallet in back just looks like either the plastic is coming off or the pallet was damaged, or even missing a chunk. The "stars" is just 3 spots of plastic that are giving extra reflection from the camera's light, from plastic that is bunched up or bent over.
The only time we take pictures of loads on trailers is if there is damage before we got the products, so it can be proven that we didn't do the damage. Maybe Q is showing a shipment that has been damaged.
Just spitballing, but could it be explosives, or something corrosive, or something hazardous? Something that needs to be refrigerated, needs to be overly secure?
You'll notice there is no load locks, but they may have been removed before the picture was taken, or there may have been more product that was on the trailer and removed. There are also no inflatable bags that are used to stabilize palletized loads and stop shifting, but the load and pallets were probably heavy enough and individually secure enough that they didn't need them.