Apple MacBook pro A1398 battery Swollen issue
https://gsmfixer.blogspot.com/2023/06/apple-macbook-pro-a1398-battery-swollen.html
How the swollen Li-ion batteries looked like on Macbook Pro with minimum charge cycles the reason why it bloated might be because I left the charger on all the time or due to over heat.
You can fix this battery with help of needle for temporary use and replace later when its totally dead.
Here is first image of swollen battery
Take a needle and puncture each cell carefully. after puncture it will be same condition like before. apply tape to hide holes to avoide gas leak.you can use the same battery for 2 or 3 months for temporary use. the best solution replace the battery to avoid damage the device