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.
How do you determine the state of the laptop? Of course, the external condition will be ideal, because no one has used it, but we have experience that in the first year 10-30% of laptops that are used in mining break down. Of course, it is beneficial for him if the laptop breaks, because the retailer will be replaced with an analogue, the money will be returned, or the motherboard will be changed to a new one.
I work as a System Engineer,I determine the state of the laptop by seeing how it performs,is it the same speed of processing as it was in the first days of purchase (despite Windows piling up lots of garbage files),is the cooling system the same effective as it was the first day and these two things which for me say a lot about the condition of the device I consider it to be like a brand new laptop.I agree if it happens that the laptop fails I guess the warranty covers any of the option above.