I wonder sometimes what it means to have no reaction to vaccines. I've had lots of vaccinations. In the military I lost count of how many pneumatic shots I got, including ones for things like yellow fever, which have a reputation for making you sick. But I never have a reaction. Not to to the aforementioned yellow fever shot, not to the tetanus shot, nothing for either of my COVID shots (which were Pfizer). I hope they're all working :)

But I 100% agree that I'd rather get sick from a shot and know that it was just annoying, not serious, than to actually risk the real deal.