The new Dynabook Portégé X30W-M weighs just 989 grams, but still offers a touchscreen with a convertible hinge, a powerful Intel Meteor Lake-H processor and a 53 Wh battery.https://www.notebookcheck.net/989-gram-lightweight-convertible-with-Thunderbolt-4-and-Gorilla-Glass-Dynabook-unveils-Portege-X30W-M.932289.0.html
I wish there were more under 1kg notebooks with touchscreen and generous ports. There are similar models from NEC and Fujitsu but they also have a LAN port. Unfortunately they're only available in Japan and only with IPS. The only other models I can think of are from Asus, Samsung, and LG for OLED, but these have so few ports.