Yeah I made a similar discovery after installing a Shelly Switch with Power Metering. The monitors and their brightness make a huge difference as well when in or near idle (for photography, so not a surprise). I’ve also implemented an “anti-standby” function, so the switch opens whenever the current falls under a specific threshold.

For the WoL, since I have a switch, I configured my BIOS so it would turn on after power loss. Now I can start to boot up from afar :)