Having used a PS3, PS4 and also an Xbox Series X, I have to say the noise level from the Xbox is impressive when the consoles are under load. Just as the reviewer mentioned, I can barely hear anything even when gaming on the XBSX for hours.
As to the SOC running hotter on the Xbox, I think it should not come as a surprise since it is a beefier chip to begin with, as compared to the SOC used in the PS5. The PS5 SOC is clocked faster, but depending on the game, it is hard to tell if it is running at full speed or not. DMC5 is not exactly a next gen game and on the PC, you can easily run the game at 60 FPS with a lower mid range GPU. You can push it by enabling RT, but I believe that caps the game at 1080p on the PS5. So again, you gain some eye candy while pushing the SOC, but also at the same time, relaxes the SOC because of the lower resolution. If possible, I think it would be great to test a similar game(s) for a like for like comparison. In any case, thank you for the review. It is good to see some numbers, rather than guessing.