[nradov]

Severe obesity significantly decreases longevity.

https://jamanetwork.com/journals/jama/fullarticle/195748

That effect has been magnified by the current COVID-19 pandemic. Obesity directly causes more severe symptoms in infected patients.

https://www.wfae.org/health/2021-09-30/novant-says-9-of-10-c...

https://cardiologyres.org/index.php/Cardiologyres/article/vi...

https://reason.com/2022/01/03/cdc-covid-19-children-hospital...

[Zababa]

So severe obesity would be indeed "almost as bad as smoking" according to your article, which is more in line with what I've heard before. Thanks for the sources.