The drain is categorized in some cases.
Drain in suspend, sleep state: I see you are trying to deep sleep as a sleep state. If you use hibernation as a suspend state, you can expect a better battery life. I haven’t tried the hibernation by myself as I have a concern about it, Fedora Linux 35 (Fedora 35) on the Framework Laptop - #75 by junaruga . But some people tried and, and reported a better battery in sleep state.
Drain in the normal state: What is your BIOS version? (sudo dmidecode -s bios-version). I remember one person reported that they saw dramatically the battery life improvement by upgrading to the latest BIOS version 3.07.
Did you check the following threads about the buttery life tuning? That is to set up powertop, tlp with a proper setting, and etc.
- [TRACKING] Linux battery life tuning (powertop, tlp, and etc)
- Battery Life?
- Battery life: hopes of equalling Thinkpad X1 Carbon in the longer term? - #4 by Animesh_Sahu (cpu setting)
- Ubuntu 21.10 on the Framework Laptop - #54 by CJ_Elevated (video for hibernation setting on Ubuntu on Framework).
Drain in completely shutdown (switched off) state: Battery slowly drains when completely shut down