[AppyPappy]

https://www.medrxiv.org/content/10.1101/2021.12.23.21268276v1.full
“Importantly, we also demonstrated that across the entire vaccinated population in England, the risk of myocarditis following vaccination was small compared to the risk following a positive severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) test [1]. “

[SeekAndFind]

The Summary says thusly:

... the risk of hospital admission or death from myocarditis is greater following COVID-19 infection than following vaccination and remains modest following sequential doses of mRNA vaccine including a third booster dose of BNT162b in the overall population.

However, the risk of myocarditis following vaccination is consistently higher in younger males , particularly following a second dose of RNA mRNA-1273 vaccine.

This tells me that we have to careful and especially look at the effects of the vaccines on YOUNGER males.

That study seems to complement the results of the study in this thread.