6800h

am really confused i bought same laptop with same gpu and everything and the only difference i notice was that the 12700h was having lower temp i found this out using the msi afterburner and it confused me alot to why this was the case because i know the 6800h has 7nm while intel has 10nm...

i know the 6800h comes with thermal paste on it but would it be safe to replace it my self in couple of years depending on how long it last and when i need to add more so could i just add liquid metal instead of thermal paste on 6800h though i know its only the 12700h intel version that comes...