> Thinkpad is no longer IBM owned

Pretty much nothing to do with that. It's been years since IBM does not own Thinkpad anymore but Lenovo was perfectly able to provide proper Linux support up until recently.

I actually agree with blaming Lenovo here, to a degree. While OP is incorrect about the ThinkPad workstation series, which can't have had the c-state bug as it never shipped with an Atom-based processor, Lenovo have extended the ThinkPad brand to a lot of computers (Edge, ThinkPad 8/10 "business tablets" / convertibles, etc.) that are not only not very Linux compatible but are also bad computers overall.

The Edge Series was not SO bad. I've owned a Edge 13 for years and it is quite solid with good Linux support.

It took quite some time for the laptops Lenovo was selling to actually be entirely new designs. For years they were selling incrementally improved classic thinkpads. Around the time when they switched from the thin walled barrel power connector to the USB looking thing is where the designs substantially changed and everything really took a turn for the worse in general.

The T-series has been VERY good, still is. If you pick up a T4(6-8)0 and max it out, I can't really think a better programmer's laptop.

I've seen them recommended by quite a few OpenBSD developers as well. Sad to see this.