If you don't understand by now that vaccines significantly reduce transmission, you just need to google "do covid vaccines reduce transmission". The top results are links to the CDC, Nature, New Scientist, the New England Journal of Medicine, The Lancet, and more, all saying that vaccines significantly reduce transmission.

Vaccines significantly reduce transmission, so if someone is telling you they don't, you need to re-evaluate whether you should trust that person and any information they're giving you.

(P.S. SARS-CoV-2 is a virus with airborne transmission that loves nasal passages, so it's probably pretty important that your mask cover your nose. So far, there's no evidence that the virus cares at all about how much money you have in your hand.)