Myocarditis from covid is worse than myocarditis from a vaccine.

"mortality and major morbidity are less and recovery is faster with mRNA vaccine–associated myocarditis compared to COVID-19 infection." https://www.ahajournals.org/doi/10.1161/CIRCRESAHA.122.321881

"Compared with myocarditis associated with covid-19 disease and conventional myocarditis, myocarditis after vaccination with SARS-CoV-2 mRNA vaccines was associated with better clinical outcomes within 90 days of admission to hospital." https://bmjmedicine.bmj.com/content/2/1/e000373

"risk–benefit assessments have determined that the benefits of using mRNA SARS-CoV-2 vaccines outweigh the risks of myocarditis" https://www.cmaj.ca/content/194/45/E1529

"Despite the small but finite risk of vaccine-induced myocarditis, the benefits of protection against COVID-19 disease and its attendant complications far outweigh the risks." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9596182/