Hi guys, I am a guy from Hong Kong, my mother tongue is Traditional Chinese and English is my secondary language, please do mind if you see any bad grammar or sentence.
What I want to say is we really need to take a look on the original post of the entire teardown thing. As I can read simplified Chinese, I found the EOSHD theory is nonsense and they intentionally OMITTING FACTS
On 30-July-2020, a guy from China teardown an R5
http://c.tieba.baidu.com/p/6848700307?pn=1
Which started the entire Canon fake R5 overheat event.
However, on 3-Aug-2020, op posted below 2 photo
http://c.tieba.baidu.com/p/6848700307?pn=5
the 1mm thick aluminum plate

And said the following
这个是在电源板和cpu 内存颗粒之间的1mm厚度的铝片 之前没有拍出来
被你们理解成电源板之间贴cpu上
实际上中间有一个铝片的
In English, it means
"This is a 1mm thick aluminum plate set between the power supply PCB and the CPU RAM section, before I forget to show it and you guys misunderstand that the CPU is stick right onto power supply PCB, the fact is there is a aluminum plate"
If you look carefully, there you go, the missing thermal pad that so much people, especially EOSHD use to claim that Canon is intentionally making the R5 overheat.
Some may think this is not enough but given the size of the camera and the tilting screen, IBIS and all that kind of stuff, Canon in fact has not much option here, just think like you are trying to build a ITX PC with a really small size case, and don't forget the screen actually created from some space that is caved inward to the body.
And for the timer thing, in the OP from China, some of them suggested that the so called "timer" is a temperature base, their theory is based on the cooling time (or overheat lockdown) is shorten after using higher thermal conductivity thermal paste, if it is software base, it would not change.
Then on 10-Aug-2020,
EOSHD comes out and say Canon is cheating his customers and WITHOUT a single word mentioning the complete finding of the OP. Personally, this make EOSHD become a source that is not trustworthy
All the way until now,
For what I have observed so far, they never ever giving out any kind of solid details on how they test, something that is really important for people to verify their result, for example, the source code of their "App", or the working apk file for people to DIY testing, (In modern days, videos or picture can be created easily to fake someone)
I found one thing interesting with EOSHD's claim is that they always compare the temperature to something stationary, like desktop PC. But the fact is R5 is a camera designed to be held with our hand, 50C may sounds like not a big problem but there is many fact that such temperature could cause contact burn, (there is even a way to cook with low temperature), it is something made for human, so we should make consideration with human standard, let alone the fact that even a modern Intel/AMD CPU cannot withstand 90C for a long period. The fact is the camera overheated is not because they want to protect the machine, but protect the user.
And after today Fridge test thing, seriously? One of the selling point for some high-end Olympus camera in Hong Kong for their durability is COLD WEATHER RESISTANT, honestly I really think the test result is once again proofing R5 is a durable machine.
All a sudden, R5 become the biggest lie Canon ever made simply because of a website that never shows any full picture of any event, from teardown to so called "test".
Off topic a little bit, in my point of view, Canon only did one thing wrong.
I have a Sony RX0 II, it is well-known that this little thing will overheat with the 4K pretty easily, on that tiny little thing Sony has give people a option to allow the RX0 II stop with a higher temperature, they did this by showing a warning on the screen that tells me I may risk getting my hand hurt. And this is what the R5 really missing.