A colleague of mine has an HP Omen laptop with 1660 ti and is mining since June or July 2021 I don't remember exactly when he got it but it is running fine so far by mining Ethereum,also this card is not one of those Rtx 3080 that can get heat pretty quick.I don't see any degradation right now to his laptop,it still looks like brand new when he get it at work.He also mines with his CPU Ryzen 5 some Raptoreums and everything is running fine so far,the laptop has three years warranty so no problems.He bought it at an expensive price though near 1500 EUR but he doesn't mine with it 24 hours of the day,for 24 hours mining laptops are a really bad choice.