If it’s not too late, I’d like to ask for a favor to case designers team.
It would be great if the future case may have an option for a fan install. From my experience with R2 (metal case) after drilling a fan hole and running it the CPU idle temperature was lowered from ~53°C to ~33°C on 40%pwm (quiet and cool ) or ~23°C @100%pwm (noisy but even cooler )
So it would be great if this feature were available by design!