The virus has a 99% survival rate (not counting the much greater rate for gimps). The vaccines have a 99.99% rate for no epipens required (allergic reactions).
Can COVID-19 Vaccines Cause Myocarditis?
https://vaxopedia.org/2021/04/28/can-covid-19-vaccines-cause-myocarditis/
There is certainly some suspicion and a few high profile cases of pericarditis which is obviously similar.