This whole post is about Linux support. All known issues, including everything you're linking here is about Windows.
We have enough questionable hardware and binary blobs in our devices as it is. Why choose a device from a company who has repeatedly proven themselves to be undeserving of our trust? Why assume they would never target any other OS? Especially considering they've been increasingly marketing themselves to linux users?
It's not about Windows. Lenovo sold the privacy and security of its users by putting a malware in BIOS. This time it affected Windows systems, but who know what comes next.