The stock thermal paste seems to be not well applied.Repasting the GPU and CPU might be help to solve the thermal issuses:[URL]  
Hi, I decided recently to purchase the Dell Inspiron 16 Plus 7610 with Nvidia RTX 3060 and let me tell you it’s the worst laptop ever made.  L It looks really good on paper so I was excited when I received my purchase, the screen was good and performance was ok but that’s where the problems started. The laptop is so loud it’s unusable you can’t even do light tasks such as emails, word PowerPoint or Zoom calls before all 3 fans spin so loud it’s very disturbing to people even sitting 10m away. Even at 10-15% CPU utilisation it’s to loud to be able to use in an office it classroom.  Dell support are also useless and told me to turn if turbo boosts to fix the issue which reduces the laptops performance by 50% ( I tested this and ran benchmark before and after and performance was reduced by 50% they also guaranteed which I still have in writing that disabling turbo boost would no effect in performance). They even sent and engineer to replace the fans in my  brand new laptop that was just unboxed and switched on but of course it’s not the issue of the actual fans so it’s still equally noisy after fans were replaced. This laptop has one of the worst thermal design and fan control I have ever experienced and after looking into this issue in more detail I have found lots and lots of people with the same issue and no fix from Dell. 
Inspiron 16 Plus 7610, worst thermal design and fan control