When I press the power button to force shut down, the clock moves from the static 13% to 3% then ‘less than a minute’ - then I let go of the key and it goes back to 13%... dont know if to laugh or cry

Stuck on 13%. How is this not solved already by Apple? I already switched my main computer (after 15 years!) to PC after Apple failed to deliver my iMac 3 times - now simply trying to run an update and reading this forum just gives even less hope. That said - sending you love and good vibes Apple - please solve this as I do need my laptop!