If you're interested in becoming a bit of a computer tech, you can very easily remedy this problem.
I'd find videos on youtube before doing anything, with that said I would 100% recommend disassembling the laptop to replace the thermal paste for the CPU and the GPU. I would 100% recommend changing every single thermal pad you see in there, and using the video guides, likely apply a few more well placed thermal pads. The paste/pads will net you a HUGE effect, likely -10c drops at max load.
These are the two pastes I would recommend -https://www.amazon.com/gp/product/B07NV27PDX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
https://www.amazon.com/gp/product/B07NV27PDX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
And Pads:
https://www.amazon.com/gp/product/B00UYTTXSM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
However, I would recommend being sure your laptop uses 1mm before purchasing. Some laptops use .5mm and 1mm or other variations but you want to be sure to get that right so you don't mess up spacing.
When I was still running a laptop, I used a small artic usb fan turned to blow air into the laptop where it naturally pulls air from. This is likely the least effective but one I would still recommend, almost like supercharging a car ;) https://www.amazon.com/gp/product/B003XN24GY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 - this is link to the one I used.
With the fan addition, I would also make sure to have your laptop lifted in the backend by something fairly small that can allow the unit to displace air better.
Lastly, I would recommend MSI Afterburner software, with a custom fan curve to turn the fans sooner with a little more power, as well as turning down the clock speed and memory clock settings. This can have a drastic impact in the -5-10c range.
I tried to comment on your first post but didn't have enough karma to do it apparently since I'm newish to reddit. Anyways! Copy pasta!
I have the exact same card and waiting on all of the pads to be delivered. As far as I can tell, everything on the front side, aside from the memory modules, is 1mm. Memory is 2mm, and I have yet to take off the back plate but it looks to be 3mm. I already replaced the front side original pads with what I had laying around, layered 1mm pads for the front side memory and different sized pieces of 1mm for the power modules. Not the best case at all but still better than the stock pads they had on it. And put a small heat sink with a fan on the back plate for now with thermal tape around the edges and MX4 paste in the middle. A little messy taking it off but so far this has made the biggest difference of about 10-12C. Also removed the stock fans put NF-A12x25's on the radiator and saw a small improvement, maybe 1-2C but completely silent. If everything arrives on time, I'll be doing all of the pads from scratch tomorrow.
Getting around 90 mhz hash rate while keeping the memory at a constant 88C since this card is primarily for gaming. Core is ice cold at 38C. 825mhz core at 731mv, +700 mhz memory and 71PL and radiator fans at 100% (can't hear them though)
Heat sink: https://www.amazon.com/gp/product/B00006B8EX/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1
Thermal Tape: https://www.amazon.com/gp/product/B072JJD2ND/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1
Pads I'm going to try:
https://www.amazon.com/gp/product/B08SKWFR1B/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B08GSCJ5W1/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B00UYTTXSM/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Also, best reference video I can find. Pretty sure the 3080 and 3090 use the same AIO
https://www.youtube.com/watch?v=yI7LgWSIuUI&t=816s