It's important to distinguish between the Framework 13 and the Framework 16. The Framework 16 is by far the most ambitious of the two, and so it has had a lot more issues. I use a Framework 13, and I've loved it. It's light, has a solid frame, and runs Linux great. The battery life isn't great, and the speakers aren't either, but I've been able to mitigate the latter with EasyEffects.

If the 16 performs worse in the power efficiency department, that is not great, but it doesnt make my machine run any worse. Calling it heavy is crazy to me, the thing is tiny. If you think it's heavy you'd have trouble using an iPad. The screen thing was a shitty manufacturing issue, they released a kit to fix it, which I luckily didnt need since mine came after they fixed it in production.

Sleep just ceased to exist in the last few years and got replaced with an always on, low power mode.

I believe the reasoning was partly that suspend to RAM had serious reliability issues due to the complexity of saving the state, partly that people starting expecting cell phone-like performance where eg, mail is always received.