I'd start to worry if that gets to 70°C, that's the kind of hot numbers you should be seeing on AMD cards not Nvidia, if you don't like this 63 then change the thermal pad and reapply thermal paste.
Lol 70°C is not hot and you can see on all GPU - AMD and Nvidia - don´t spread false information and when you have not enough knowledge - shut up. This is so stupid AMD vs. Nvidia - Nvidia vs. AMD vs. Intel vs. yourself vs. a frog.
My 6600xt run at 25% fan at 55°C dual mining - some of my old nvidia 1050ti´s running fanless while mining, one of my RTX 2060 running at 75°C @ 80% fan and so on. I cannot see that one manufacturer is better than the other.