Broken Power Button + Bricked Motherboard

PRODUCT NAME: Lenovo Legion 5 15ITH6H

Basically I broke my laptops power button because of the amount of times the laptop would boot up and get stuck on a black screen which I’ve come to realize has become a common occurrence among the 2021 Legion models.

So now I have a laptop that I basically know still works, has issues with its mother board (I’m assuming) and now a broken power button that I understand is fixable but would need to replace the entire keyboard part since it is connected.

I cannot get it to power on because like I said, the power button is stuck and cannot be pressed down.

My warranty expired ages ago so I just wanted some advice. Is it saveable, is it worth fixing the motherboard somehow and getting the power but on fixed or is it something I should just forget about.