The AMD cooler brackets must be removed, the Kryos Next is screwed directly to the AMD backplate.
The correct cooler orientation can be seen on your first picture, just turn the picture 90° to the left or look for the golden triangle.
The CCDs of the Ryzen CPUs are located under the IO die towards the PCIe slots.
My Kryos Next is an older one and not moved, but I hope you can see some of the assembly.
I am just too stupid to include the images :-(
Now it works :-)
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