In USA and EU, repastinf won't void warranty, but any damage caused by repastinf it will void the warranty.ok your situation isnt normal :/
I've bumped my TDP back to default from 35-50W and this is what I've got
I do have dGPU on now, I've had msHybrid on before, but the cpu fans were a bit weird today so switched
Let's say, I did repasting but the laptop did not boot anymore bec of something I did wrong. In this case yes it will void the warranty.
But if it worked as it was, they do not have the right to void my warranty, bec this is called maintaining.
Thanks for checking my video and testing