I have the same question but I'll tweak the parameters somewhat: I want a movable developer workstation. I'll never (or almost never) be using these components

I have the same question but I'll tweak the parameters somewhat: I want a movable developer workstation. I'll never (or almost never) be using these components of the laptop: battery, screen, touchpad, keyboard. I also don't care much about size weight since I'll be 99% sitting still. On the contrary I'd like it to be large and heavy, if it would help with noise and thermals. Are there good "movable" laptops that run cool and quiet yet have high perf, and achieve this by actually making the laptop larger? I want something with good build quality (not a plasticky gaming rig). I want something using recent CPUs (intel 12th gen, or recent Ryzen). High power (35W and up) that can run for hours without throttling. I have tried various Dell models (precisions) but the thermals are abysmal because it's only half the thickness it needs to have in order to manage that kind of power.