I will just directly say what you are alluding to and take the hit of downvotes. Many studies have now found the vaccinations cause myocardial injury such as this one that found 1 in 35 people receiving the vaccination showed markers of myocardial damage. https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejhf.2978

These articles seem to be trying to point the cause of the damage to the Covid disease when the evidence unmentioned shows that the damage is coming from the vaccinations.