https://www.asus.com/us/Laptops/For-Home/Zenbook/Zenbook-S-1...
https://www.lenovo.com/us/en/p/laptops/thinkpad/thinkpadp/th...
The G14 is 1.65kg, which isn't the lightest, but is actually the exact same weight as Asus's upcoming iGPU-only 6800H/6900HX Vivobook S 14X: https://www.asus.com/Laptops/For-Home/Vivobook/Vivobook-S-14...
https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T...
The T14 has a 4K IPS option:
https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_T...
With that and USB4 the AMD Lenovos seem to be finally uncorked. At this point the Intel-only X1 is suffering as a supposedly top of the line laptop. The chassis is slightly better and that's about its only advantage.
To find the PDFs you can navigate psref.lenovo.com. Pick the model and go to the specifications tab. You can just see the content there or click the PDF link to get to the file. And even that website is not always fully updated. Sometimes the distributor can already configure something they haven't published the specs for. Yet another thing they could make 10x better and end up selling more because of it.