This sounds more like issues with snap (and its isolation model) than systemd. Power issues are always a pain. I built out the Linux OS for a fleet of mobile

This sounds more like issues with snap (and its isolation model) than systemd. Power issues are always a pain. I built out the Linux OS for a fleet of mobile robots and found that the defaults for power management were very poor, but everything is there to get a bulletproof system. I could see how there would be issues with more unique laptop setups or external monitors/keyboards and whatnot.