At least on Thinkpads over the years, I've never seen anything remotely close to that either. I've had my Thinkpad x260 power draw down to 2.5 watts at idle, and around 4 or 5 watts with a browser and a few terminals open. That was back in 2018! With the hot-swappable battery on the back, I could go for 24 hours of active use without concern.
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.