It's a pity laptop manufacturers haven't figured out how to dissipate heat by using the lid as radiator. I read about some experiments years ago where they managed to get rid of like 25W

Edit: yes, normal laptop with all the bits under the keyboard and heat pipe going to the lid. I can't find a better source than this patent

https://patents.google.com/patent/US5880929A/en

But I distinctly remember seeing photos of a prototype in something like wired or the register

Interesting, were those experiments with traditional layout when motherboard is in the bottom part of the laptop? Maybe we just need to make screen heavy laptops with thin keyboards but with thicker cooling, that could also utilize convection better. Something that you put vertically and open keyboard down, I think some gaming tablets are like this now