My employer provided me an X1 Extreme. Overall it's a great laptop - only real complaint is that it includes a dedicated GPU and I'd rather have integrated graphics. Sure, you can boot with just the Intel GPU with PopOS - but that comes with certain trade-offs like not being able to use the HDMI port.

Keyboard is great. Trackpoint is great. Trackpad is OK. Screen is great (I have the 4k and just run it at 1080p to simplify my life) - but the colors and brightness are amazing. Performance is great.