Context for the vote. The rack is built from primitives in Spline, remixable on the Community under my name, and loads in under a second as a hero. The laptop is a code render of the real dashboard. My worry with real screens is they go dark and tiny at phone width. If you pick...

I’d lean toward the real screens on a laptop! Seeing the actual product in action makes it easier to understand what you’re getting and builds trust faster.

Real screens, for me. For a tool like Postmortem, people trust what they can see working, and the laptop shot shows the product in five seconds. The 3D object looks great, but it makes visitors guess what the product actually does. I'd keep the 3D as a smaller accent further down the page.