I have the AMD Framework 13 running Debian/KDE and get substantially better battery life than what you're describing but it definitely still doesn't compare to an M-series Macbook.
That said, it's worth noting that battery life struggles are common across all Linux laptops, not specific to Framework. I've run Ubuntu on laptops from several brands and they all have weird suspend/resume issues, high battery usage, and so on. (I just installed `tlp` for the first time at the recommendation of another reply to you [0], so we'll see if that makes a difference.)
I'd be curious to hear from someone who runs a Framework with Windows (if such a person exists) to see what the power story is like there.
That said, it's worth noting that battery life struggles are common across all Linux laptops, not specific to Framework. I've run Ubuntu on laptops from several brands and they all have weird suspend/resume issues, high battery usage, and so on. (I just installed `tlp` for the first time at the recommendation of another reply to you [0], so we'll see if that makes a difference.)
I'd be curious to hear from someone who runs a Framework with Windows (if such a person exists) to see what the power story is like there.
[0] https://news.ycombinator.com/item?id=40745832