The video sums it up, but I actually switched to the Arctic thermal pads, and can now shoot 4k24 HDR PQ at 80 degrees Fahrenheit for a full 60 minutes. This is to say that it will likely not overheat at all in environments up to 80 F, though this is indoors with no direct sunlight. I haven't tested it at 4k30 yet, but I'll make a follow-up video regarding that. I can also do a tutorial if anyone needs, but if you just follow a disassembly video, you shouldn't have any issues. You'll need 2mm (or 2 x 1mm stacked) between the processor and plate, as well as the ram and plate. You'll also need 1mm between the plate and the back cover.
This is the thermal pad I used (I don't earn anything from people clicking on the link nor from people buying this product):
https://www.amazon.com/ARCTIC-TP-3-Pe...
Of course, opening your camera and doing any kind of modification is done at your own risk, though as long as you don't break any cables or knock off any resistors/capacitors/etc., you shouldn't have any issues. It's really not a very high risk job, especially since most cameras are modular, meaning you can replace individual parts like the mainboard, ribbon cables, sensor, screen, and more, without having to replace the entire camera.
This video was shot at 4k24 HDR PQ using the Canon RF50mm F1.8 STM.
Shutter Speed 1/50
F Stop 1.8
Servo AF
ISO Auto
WB Auto
If I remake this video, I'll do it with manual white balance, as well as manual white balance. You can probably tell in the video, but the ISO keeps changing because of the laptop screen's brightness fluctuating. I tried setting the screen to the lowest brightness, and it's still visible but it doesn't cause the ISO to go crazy (though manual ISO would still be better just to be safe). This is a re-upload in HDR Rec. 2100 PQ, as opposed to the original upload, which was graded and exported in Rec. 709.
Let me know if you have any questions regarding the camera, or cameras in general, as well as Adobe Premiere Pro stuff. I'm not an expert by any means, but I'm an Aerospace Research Engineer, and try to approach things by educating myself as best I can, to include reading documentation and technical research papers.