LG Ultrafine 5k appears to be the only 27“ monitor with retina-quality display matching that of Macbooks.
Thinkpad X1 Carbon Gen 7 review
Linux kernel 5.9 or later has the best hardware support. Everything including Thunderbolt and fingerprint reader works on Linux. I was surprised in particular to see that 5k resolution worked in LG Ultrafine 5k, which is a retina-quality Thunderbolt monitor designed specifically for Macbooks. Compared to previous Thinkpads (such as P71), the trackpad is as good as that of a Macbook.