Hi there, I got Fedora Silverblue 42 aarch64 and the backlit keyboard always stays on even when the screen goes off or it does its sort of sleep mode. I have to manually turn it off by pressing FN+Space every night going to sleep and turn it back on manually next day.
GitHub - saibotd/tp-auto-kbbl: Auto toggle keyboard back-lighting on Thinkpads (and maybe other laptops) for Linux didn’t worked
GitHub - myTerminal/thinklucent: A simple implementation for automatic keyboard backlight in Linux for ThinkPad (and beyond) compile failed