Does it overheat when closed

I’m wanting to use my framework with a docking station, and with where the heatsink is I was wondering if it was possible to use while closed or if it would overheat? Has anyone else done the same?

I’m fairly sure someone asked this elsewhere, and the response was that it was designed to be OK to be used closed, albeit it will run a bit hotter than if open.

Edit: Found it!