The chip in the pi5 isn’t all that efficient so I doubt it’ll beat the current offerings in pretty much any workload, and that is ignoring what hdmi to edp chipsets and stuff like that would also pull.
Something with an rk3588 may be a better option for that but the software support for that sucks a lot more than anything raspberry and still won’t beat anything else framework has so far in power consumption on anything you’d remotely do on a laptop.