Odd, I've had nothing but positive experiences with Linux on Thinkpads for 3 machines running (t61p, x220, now an x260).

Not sure what distro you're using, but from what I hear, a lot of the Fedora devs use Thinkpads, so if you're on a thinkpad, Fedora workstation is likely to be your best bet (which is what I've been using for quite a while now).

For me right now, the upcoming T14 is the thing to beat, even for a Linux laptop. Given its got a 4k screen and my anecdotally positive experience with the Linux/Thinkpad combo. So I don't know if I'll jump onto Tuxedo or System76.