I mean I use it in power saver mode. It goes as low as 400MHz but it’s not fixed at that. 12th gen i7 btw.

I haven’t evaluated it properly in a while but I’m pretty sure it was under 8 hours with the CPU throttled and the screen brightness low. I am usually just writing or coding on it, nothing too intensive.

I’m running Fedora on my Framework 13 - works great, no issues. I have only had it open to install the RAM so far, but it appears to be as upgradeable and repairable as advertised. Looks great, feels premium, nice and light. Not great battery life is my only complaint, but there are larger batteries available for the 13 since I bought mine.