I get below 5W at idle (ff and emacs open, screen at indoor brightness, wifi on) on my gen11 framework. Going from 8 to 5 required some tinkering.

I don't think I ever saw 50W at all, even under load; they probably run an Ultra U1xxH, permanently turbo-boosted.

For some reason. Given the level of tinkering (with schedulers and interrupt frequencies), it's likely self-imposed at this point, but you never know.