For the original question: I’ve found that there is a “Power on AC attach” option in the bios, which allows the Framework to power on (from off/hibernate) when you attach power. This is what I’m using to power up the laptop in the morning (I’m using an AC outlet with a switch, so I can really cut power to the dock/laptop completely during the night, and then conveniently power it up again in the morning, though see Laptop powers *on* after hibernate when unplugging/unpowering dock for a small issue on powerdown with this approach).
Additionally, waking up the Framework from sleep also works for me, just by pressing a key on my external keyboard. Note that this probably does not work on TB3 dock, since a distinguishing new feature of TB4 is that it supports wakeup-from sleep (this is probably because TB3 tunnels USB2 traffic over TB, while with TB4 it just uses separate wires that can more easily stay active in sleep). I’ve tested this with the keyboard connected through my Caldigit TS4 TB4 dock, and the keyboard connected directly to a USB-A port.
I’m using Ubuntu 22.04.