These videos [1] were published by a number of tabloids such as The Daily Mail [2] and The Sun [3]. I also remember that a very popular french TV show (Quotidien [4]) published them as well.
By coincidence, my uncle got the covid nearly at the same time he got his Pfizer shot. Later, the symptoms became too serious. It seems that the vaccine didn't have enough time to protect him. He went to the hospital where he discovered he got the covid. He was under oxygen for weeks. Luckily, he recovered, but lost so much weight and now feels very weak. This is just one example, I don't know whether it would be different or similar in general. Nevertheless, it is still a reason to think that maybe it is not a good idea.
My job is about operations research and optimization. One of my favourite blogs is "Yet Another Math Programming Consultant", that contains great articles about this topic.
https://yetanothermathprogrammingconsultant.blogspot.com/
[1] https://www.snopes.com/fact-check/people-collapsing-coronavi...
[2] https://www.dailymail.co.uk/news/article-7923981/Coronavirus...
[3] https://www.thesun.co.uk/news/10808633/coronavirus-wuhan-zom...
[4] https://www.liberation.fr/checknews/2020/01/31/les-videos-di...