I wasn't believing it could be possible but with all the investigative pressure maybe Canon will indeed be forced to make some modification since it appears it may be feasible.1 . yes CF Express generates a ton of heat.
typical M.2 NVMe SSD using x3 PCI-E lane and CFExpress type B using 2X PCI-E lane if i remember correctly. although it only needs around 5-15 Watt for M.2 SSD, it does produce massive amount of heat.
thats why some fast & expensive VNMe SSD had heatsink on top of it. also consider how small the form factor of CFExpress type B is compared to M.2 SSD.
also user in another thread in this forum pointed out how NVMe may work on the camera, which is pretty similar with what we can found in our PC.
2. Most Likely
with how they place CPU & CFExpress slot, it probably is. but deliberately or not we didnt know for sure.
3. yeah same as i thought