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Q: detailed problem description with research and links explaining how problem is different from existing posts and that the mentioned solutions did not work for this case.
A: duplicate. (links to same url Q explicitly mentioned and explained)
My personal experience with laptop batteries was not as nice as yours, but neither should be blindly trusted.
Not sure if there is some science on it anywhere but this random search result article https://www.pcmag.com/how-to/help-my-laptop-battery-is-swollen-now-what says: