Don't remember the model, but a Lenovo of a family member had a broken Wi-fi card, just when it was 2 weeks out of warranty. No goodwill from Lenovo, they estimated repair costs a significant fraction of the price of the whole laptop. Plus my family member would not have his laptop for 2 weeks, whilst he needs it for his business.

So I tried to do it myself. Studying official materials, repair videos, the like. The important thing I learned is to get exactly the correct Wi-fi card because the laptop (the BIOS I guess) rejects any other type not on the "allow list".

So I ordered it and connected it, which was easy enough. Still rejects it.

Also, the laptop shipped with a wrong keyboard layout. Which my family member reported directly after purchase but Lenovo refused a return.

At work I also have a company issues Lenovo. It keeps prompting for firmware updates. The last time I applied it, it crashed the entire machine and it took me days to get it in working order again.

Your mileage may vary but to me these are Russian roulette machines. Fragile, full of arbitrary limitations, shit software, worse support.