I agree with @LordVic How is MS supposed to design a big screen? There are only so many ways to present that.You can't appreciate how similar those designs are? Seriously? Factor in the whole history of PC design and see how the iMac feeds directly into the Studio. This is not about the differences you perceive between the designs, but the substantial similarities that point to Apple as the progenitor of the design language involved here.
Does the iMac tilt? No. Does the iMac have the computer built into the base? No. Doe the iMac have two support stands? No.
They are NOT similar in anything other than have a big screen.