some die-hard old school Thinkpad fans have been developing custom motherboards with Intel 8th gen, 10th gen CPUs for classic Thinkpad laptops from 2000s like x201, x61, T60. Some even put a 13 inch 3:2 screen in the x201's 12 inch chassis and created a slim bezel machine. I think it is a novelty of technology. Recently they are making the last model of modded motherboard called the x2100 project
Their forum: https://forum.51nb.com/forum.php?mod=forumdisplay&fid=117&page=4&filter=author&orderby=dateline (need to sign up)