> - proper support for S3, very low S3 power consumption

Can you measure it for those of us, who are interested in finding exact numbers? You can use script - https://github.com/savchenko/powerdrain

For example on Fedora35-Linux 5.16(T14s AMD Gen1), I get following numbers:

Feb 07 12:13:22 weathertop systemd-sleep[5438]: [INFO] Discharge rate: 0.94741 W/h.

So basically a fully charged laptop will discharge itself when left in sleep for 2 days or so.