I spent two days debugging my Latitude 7420’s high drain during modern standby due to intel SST. It would never enter HW driven modern standby (HW low power state time was 0%) I fixed it by disabling “Waves Audio Services” and " Waves Audio Universal Services" in services.msc. I wonder if this would fix this drain case for the framework laptop. I went from 60 minutes draining 5% to 8 hours draining 5%.
EDIT: per @RandomUser these services do not exist on framework. ignore my post.