I'm not sure this is Thinkpad specific. I have a Dell Latitude 7490, same generation as the X1 gen 6, and I often see "Package temperature above threshold, cpu

I'm not sure this is Thinkpad specific. I have a Dell Latitude 7490, same generation as the X1 gen 6, and I often see "Package temperature above threshold, cpu clock throttled", same as on my 6th gen X1 at home. And I don't push these machines, the heavy stuff run on a server. Also, the page with the fix [1] list a Dell XPS 9370. So it may just come with recent Intel based laptops. Personally I have no problem with Linux having a more conservative thermal threshold than Windows, on the contrary I prefer it that way. The few times I ran Windows 10 on these same laptops, I got annoyed by the fans spinning when I didn't do anything substantial. I'd rather have my laptop cool and silent (and still very reasonably fast for most things) than faster on heavy loads. To each their own, but I think silence and low temperature make sense for ultra-portable PCs. For a portable workstation maybe less so. But it's Linux, if you don't like the default it's not so difficult to change them to suit your needs. [1] https://github.com/erpalma/lenovo-throttling-fix https://github.com/erpalma/lenovo-throttling-fix