On the topic of the Steam Deck, I don't recommend the thermal mod. I triggered my Deck into storage mode somehow, because after I reassembled everything and booted, the machine worked fine for about 10 minutes, then crashed. It rebooted, then crashed again to a black screen of death. Fans on, haptics on the touchpads, but no display output.

I reseated the cooler and followed random button presses I found online until it finally booted and ran well for hours on end. Not worth the stress.