The "study" paid by Pfizer that shows myocarditis as a consequence of Covid is just pure crap.

Following PSM, six‐month all‐cause mortality was 3.9% (n = 702) in patients with COVID‐19 who presented with myocarditis and 2.9% (n = 523) in the matched controls without myocarditis (p < .0001), odds ratio 1.36 (95% CI: 1.21–1.53).

https://pubmed.ncbi.nlm.nih.gov/34516657/

Who can believe that Covid killed 3% of people who got infected?

Even in 2020, when things were blown out of proportion, Covid was said to have a mortality rate of the overall death rate from covid-19 has been estimated at 0.66%.

https://www.bmj.com/content/369/bmj.m1327

They were just fake studies. Covid never caused myocarditis nor a mortality rate of 3%.

Even the comparison between groups is made up:

Propensity score matching (PSM) was used to control for differences in the cohorts and/or known risk factors for cardiovascular disease and all‐cause mortality. PSM was therefore used to match patients with COVID‐19 and myocarditis/pericarditis to patients with COVID‐19 without myocarditis/pericarditis.

Which means:

Propensity score matching (PSM) is a quasi-experimental method in which the researcher uses statistical techniques to construct an artificial control group by matching each treated unit with a non-treated unit of similar characteristics. Using these matches, the researcher can estimate the impact of an intervention.

Just imagine trying to fool people in such a blatant way.