MacBook Pro battery suddenly died, won't charge anymore

Hi!

I was recently using my MacBook Pro (2020 M1 13in, Sequoia 15.5) as normal, and left it to charge. It charged up to 100%, at which point unplugged it and put it in my bag.

Fast forward a couple of hours, I open it again, and it's dead. It went from 100% to 0% (see image) seemingly instantly??

The laptop now only works when plugged in and the battery doesn't charge, instead says service recommended.

I am really confused as it was completely fine and working great mere hours ago.

Any thoughts or advice would be greatly appreciated.

[Edited by Moderator]