External power button for Legion 5 (15ARH05H)?

I’m turning my Lenovo Legion 5 15ARH05H (Ryzen 7 4800H / RTX 2060) into a living-room gaming PC and would love a one-button power-on, like a console.
Has anyone added an external power button to this model? Is the power button on a separate daughterboard/ribbon cable, or would it require soldering to the motherboard?
I’m considering using an ESP32 to simulate the power button, but I’d prefer a reversible, no-solder solution if possible.
Any advice or teardown photos would be appreciated!