The default answer is a ThinkPad. X1C and T495s (AMD Ryzen!) are very interesting options. Sadly delivery times are really long now due to Intel supply problems or COVID disruptions.

Dell XPS 2020 is cool, but I have had many QC problems with Dell expensive hardware. So I try to skip Dell except for UltraSharp screens.

T2 chip will block access to disk in most recent Macs, so that's not an option. Which is unfortunate, as some MacBook Airs were perfect Linux machines. Linus himself used one a few years ago as his main machine before switching to a Pixel.

IMHO, surprisingly, Microsoft Surface devices are worth considering. The most recent batch is mostly Intel/AMD hardware top-down.

Surface Go works perfectly with a mainline kernel. Surface Book 2, Pro 7 and Laptop 3 work quite well, except minor glitches and touch support (which is still being worked out in some models). A caveat is that camera support is non-existent in non-Book devices. Some Windows Hello cameras are weird I guess. Else, hardware is fantastic, keyboard is a delight and those 3:2 screens are really good.

Ideally I'd want the a 1440p screen.