in AWCC are you in High Performance mode? 
when i don’t have a game running I keep it at Thermal Balance and temps idle around 38c. 

The problem is the Air cooler is subpar for an 11900 CPU

Oh okay so it’s air cooled. I have heard in here also that’s normal temps for air cooled. Maybe think about upgrading to water cooled cpu. A lot of info in here about that.

if all at Balance your cpu should be lower than 4.6 GHz for sure. In windows power settings is it on balance too? Some of the big guns in here should help you. 

I have overclocking as Off, Thermal set to Balanced and Power set to Balanced, and have idle temps of 75C

Little strange that your 3080 is idling at max clocks using 30% power and has a massive 9500mhz memory clock going on though

 this is my idle temps for 11600KF with an all core OC of 4.9Ghz liquid cooled. High performance mode and cpu power throttling disabled via registry reason why it stays locked at the upper clock 100%.

 You can change to performance thermal plan and then change to high performance power plan as well but lower the minimum cpu limit to something like 50% so when idle doing nothing your temps should be pretty low, performance thermal plan will run the intake and exhaust fans a little faster when needed so it will also lower your idle temps and your high load temps

That is considered normal with air cooling. One thing you can do is increase the front intake fan speed and especially the top exhaust fan speed, to increase air flow in the case.

In my opinion these systems should not be sold with air cooling, only liquid cooling.

Mine does the same thing. I don't think it drops down the clock frequency, just the Core clock to 1710 when idling.

You can see the negative effects of the air cooling, as the idle temps for that 3080 are 55C while mine is 34C. It's because of the hot air from the CPU cooler dissipating in the case...

Would you suggest fitting the liquid cooler onto the CPU instead?

One of my friends suggested that it could be an issue with the drivers? What do you think?

do you know how I can reudce vram clocks?

Nah not drivers. Air cooler runs right under the psu and is relatively small anyway besides it being choked for air. Liquid cooler will fix your issue

9652 Mhz to be precise, as I have a small overclock of +150 Mhz on the RAM.

Memory temps are 56-58C at idle and around 70C when loaded up. 80C if benchmarked and driven into the power limit of the card..

Total power draw is about 83 Watts when idle.

The GDDR6X used on the 3080 and 3090 are supposed to be good for up to 10.000 Mhz, but Nvidia clocked them down. Likely to keep the temperatures into check.

I have seen people report 90c and even 110C temps on their memory. Nvidia claims up to 110C is ok, but I personally think anything above 90C on an electronic component is asking for trouble.

I think many people make the mistake of overclocking the ram and pushing it to high, not realizing the ram used on these is ECC ram. With regular ram you will notice artifacting when pushing it to high. With this ram you will not notice anything because it will correct any errors using ECC. Therefore you can push it over it's limit and not realize it, eventually damaging the memory modules.

I have not found any way or method to see if any ECC is being used. If you could see that you could test your memory overclock better. That's why I recommend not pushing the memory to much on these cards.

That's true, the Dell 3080 has been known to have really high vram temps.

 My 6800XT memory runs at 2100 with a +100 OC, it's ECC ram as well. Can go up to 2150 but I've found some errors past 2125