Not a framework laptop, but Googling led me here as I am having this issue in Arch on a Dell G5 with an i7-10750H cpu. Same symptoms as above, verified with turbostat. ~1.25w idle and ~2w just moving the mouse. ~1.5w just touching the touchpad…
Edit: Can confirm that I get better battery life and lower powertop system usage on both Fedora and NixOS compared to Arch on this specific laptop… So unfortunately I’ll have to use something other than Arch on this laptop for now 
in Arch ~13-15 idle - 16-20w browsing the web (even a live ISO)
in Fedora or NixOS ~7.5w idle and 10-13w browsing the web so the difference is significant.
Edit2: installed NixOS including nvidia drivers… crummy battery life persisted, and even though in Arch I had enabled udev rules to disable the nvidia card as per arch wiki, my nvidia card still wasn’t disabling. Turns out at least on NixOS I was able to get the dGPU suspend working using the nix config posted in How to use Nvidia PRIME offload to run the X server on the integrated board - #15 by Denommus - Help - NixOS Discourse