Similar thing happened to me with two of my pixelbooks on the 12th Oct 2024, both sadly had very low battery (my daughter is a menace for charging!) and were in the middle of an update. Now both laptops will not turn on or even charge (no led lights on charging port) I have managed to get one of them to trickle charge using an old phone charger but 12 hours of charging only gave me 3 mins of use. I'm going to see if I can leave it for a week on charge and try to powerwash it.