The initial temperature of my Intel CPUs corresponds to the ambient temperature, the processor then adds another 8 - 10°. AMD processors are rumoured to be more heat-intensive (?): I am interested in all aspects of the PC! Thank you very much!

The G stands for integrated graphics. Would be too weak for gaming for me. For gaming, I would use a Ryzen 5 5600 (without G) and a graphics card. The 5600 also supports PCI 4 (the 5600G only supports PCI 3). With PCI 4, the performance advantages of PCI 4 SSDs and graphics cards can be utilised.

Yes, but this one is very bad...

Hello, I can't really answer this question because I've never had anything like this before. Why don't you just ask the support before there are any inconsistencies with the order. It seems to me that GALAXUS is a reputable company. Perhaps the staff there are more accommodating when it comes to dealing with such issues? Good luck!

Yes, of course, the CPU and the cooler can be used immediately, but you should not remove it again because then you would have to apply new thermal paste.

Depending on supply/demand, Digitec will adjust the price, but of course it doesn't really make sense.

Look here: https://www.amd.com/en/support/kb/faq/cpu-7 The plastic top part, which houses the fan, has a diameter of approx. 10.5cm, with a nose protruding just above the RAMs, where the plastic part is 5-8mm larger (difficult to measure because the plastic top part becomes thicker towards the bottom). I think you should turn the cooler 180° so that the nose protrudes on the other side. Height measured from the board approx. 5.2 cm

I cannot confirm this. I see the price curve with this product and also with the others (just tested three at random).