Pinebook Pro?

[Luke]

@Luke I guess pinebook pro is fanless as well. I wonder does it suffer from overheating in such thin case?

Nope, you can obviously make it run super hot under artifical load, in which case it will throttle ... but not by much. Under regular use I doubt you'll ever see the PB Pro throttle.

Then what is the point in those massive heatsinks for rockpro64 I see in store.pine64? (since it is the same rk3399)

There is a massive heatsink for the SOC on the Pinebook Pro too - the entire bottom of the case.