I run the framework with a i7-1165G7 and Ubuntu+i3wm. I have had this laptop for ~3 weeks now. Battery life for me is running around 5-8 hours with full brightness, music streaming, and somewhat active use. It isn't fantastic but it is pretty reasonable. I haven't conducted any serious measurements but I'd say the battery life is pretty solid (and the screen is pretty bright). (This is all anecdotal though, If you really want serious numbers, I'd wait for some tech reviewer)

Same question here. I’d love to ditch my MBP for this, but I rely on portability heavily and will need something that will last a work day.

Unfortunately it’s the Achilles heel of this device. I was getting 3-4 hours of battery on Linux web browsing and VSCode