I took apart my Brume so you do not have to…
Kids - do not try this at home - I’m a trained professional
All the important chips have thermal pads connecting to the upper/lower heatsinks.
I’d pop the heatsinks, but looks like they’re one-time thermal pads - but since we’ve seen one side of the board (check the MV-1000 docs), it would be nice to see the other side of the board, where there is supposedly a WiFi chip.
Anyways, the thermal solution that GL-iNet provides should be more than sufficient - the Marvell 3720 has a reputation based on other boards (EspressoBin from GlobalScale) where they tend to run warm, looking at the approach here, I’m not seeing any problems with the board running at 1GHz