As far as I know, in my use cases R5 won't overheat. What am I doing wrong?
If you know that you need a camera that won't overheat in 4K60 no matter what, why won't you take a camera that doesn't?
Just take notice that Canon doesn't yet produce a 5D-series camera with 4K60 for your use cases, and move on.
I actually already have two cameras that will shoot unlimited 4K60 for hours and will not overheat. My point all along is that people make it seem like it is completely unreasonable to expect a product with advertised features to be able to provide those features without thermal shutdown concerns just because it has the Canon logo on it.
I love Canon products, I really do, I think the R5 and R6 are fantastic cameras, I do not think they will fit my use case scenarios due to their limitations and my biggest concerns aren't even thermal. That's just my opinion and stating that on a Canon forum is perfectly acceptable. I know its not a popular opinion on a Canon forum, and I'm ok with that, but when people come back with a counter argument or state flat out wrong information like "it will only overheat if you try to record 20min of 8K" or "its perfectly acceptable to release a camera that can go into thermal shutdown when using its features" then yea I feel the urge to point out that that doesn't align with people's expectations for pretty much any other product.