Had this issue on my old reference 6950 XT… the replacement card had the same high hotspot temp issue as well, so I gave the re-paste method a try, it didn’t make much difference.
Then I tried the reducing the power limit method, this did help with the temps and fan speeds, for only a 3% drop in performance.
Also both cards had some coil whine.
In the end, I gave up on AMD, I got myself a 4070 Ti, it runs with less power, less fan speed and lower temps. I also hit the jackpot… hardly any coil whine noise.