I'm searching for a decent (and cheap) portable laptop that lasts long on battery. Lenovo's Thinkbook 14 looks intriguing, and they come nowadays in two variants, G6 and newer G7. The older G6 has 7x30u CPUs which are nothing new, but I know they are very power efficient. However, the newer generation G7 comes with 7x35hs variants, not the U variants. I read somebody posted here that AMD is renaming the U CPUs, but since 7x35u still exist, I wonder. If I opt for the 7x35hs, can I expect the same power efficiency (10+ hr battery life of internet browsing and office work) like I can with the older U?