It’s the same as flu simple put. Yes you can still be a carrier and spread it but the point of the vaccine is so you don’t get it. Is it guaranteed l? NO!!!!!
Guess what, no shot is. I got the flu shot last year and a month later got the worst stomach flu of my life (was not food poisoning because I ate the same lunch as my co workers and same supper as my son and spouse and parents) it was terrible. I puked and had diarrhea all night. Man oh man, I nearly wanted to die.
Covid is no different. It greatly reduces your chances of getting Covid but it’s not 100 percent. In my home province of Saskatchewan Canada since nearly everyone has been double vaccinated, cases have literally gone from the 100s to 20s. The morons that don’t want to get vaccinated, that is totally fine. We have free health care in Canada, but wish we didn’t provide it to the morons that didn’t get vaccinated.