That’s what I keep reading here. Several young people under age 35 in my family had multiple shots. No one had any heart issues. That does not mean some young people did suffer adverse reactions to COVID shots. May be there were other side health issues present? Who knows. My guess is overwhelming number of young people are alive and well after the jabs. Which leads me to believe percentage of people who suffered adverse side effects may be small.
My understanding is that only 1 in 800 had a very adverse reaction. Which on an individual level is a small percentage. On a population level, that is catastrophic.