Lenovo left a sour taste for me after they pushed a BIOS update through Windows Update on my daughter's Flex that bricked the device (in the middle of a school-week, while she was doing online school).
There were dozens of reports of the same problem from other owners of that model, yet they refused to acknowledge the issue was theirs or offer any self-serve option (I remember most laptops nowadays can re-flash the BIOS from an attached USB with specific format and layout, but I presume they saved a couple of cents by removing that feature from the Flex models). Luckily the laptop was still in warranty and I got it "fixed" after 6 weeks, but will never purchase another Lenovo product again.
There were dozens of reports of the same problem from other owners of that model, yet they refused to acknowledge the issue was theirs or offer any self-serve option (I remember most laptops nowadays can re-flash the BIOS from an attached USB with specific format and layout, but I presume they saved a couple of cents by removing that feature from the Flex models). Luckily the laptop was still in warranty and I got it "fixed" after 6 weeks, but will never purchase another Lenovo product again.