High battery drainage during sleep on M2

Hey, I am running the newest Asahi Fedora release with GNOME as my D.E.
Whenever I put my MacBook M2 Air 14" into sleep and come back to use it the next day, I realise that the battery lost a significant amount of charging over night.
That’s something, that doesn’t happen, when using macOS.

Is this a known issue? If not, how can I (help to) find the cause?

This is a known issue. Sleep is s2idle on Linux at the moment, and idle power management isn’t as good as macOS yet.