Whether it's copying or not depends on how the design was created, which we don't know. If someone hires Jony Ive's twin brother who completely independently creates a design that looks very similar, that is not copying. If a company tells their designers "make it look like a MBP, but just different enough that they can't sue us" then it is copying. Legally it doesn't matter.
What matters is whether there is a design patent, and whether a design matches that design patent. And that is something that can be checked quite objectively. The designs don't have to look identical. And of course Apple is not the only one with design patents. Many years ago when eMachines tried to sell an iMac clone and got sued, it turned out that eMachines also had design patents for an all-in-one computer. But somehow they thought a computer that looked like Apple's design patent would sell better than a computer that looked like their own design patent.
With the photos of the inside of the HP Envy and the MBP shown, I would suspect that some copying has happened, but the designs don't match.
