Vidqun,
'Sudden cardiac arrest is the leading cause of death of young athletes' - Mayo clinic.
Heres a lot more links for you, all in english, not behind paywalls. They arent 3rd hand twitter posts, or facebook memes.
This has been going on forever, long before covid,mainly due to undiagnosed heart issues like myocarditis and other problems. Just because you havent seen someone drop dead on your TV, doesnt mean it isnt real.
https://www.healthychildren.org/English/health-issues/injuries-emergencies/sports-injuries/Pages/Sudden-Cardiac-Death.aspx
https://www.news.com.au/sport/sports-life/the-512-billion-problem-killing-22000-australians-every-year/news-story/f6318c13ee0f12029517b46927b19e6b
https://www.kansashealthsystem.com/news-room/blog/0001/01/cardiac-death-young-athletes