Non-N95 masks are VERY EFFECTIVE at stopping the transmission of the virus from an infected person (at over 85% in most studies). If EVERYONE masks up then society is protected better in communities where COVID prevalence is not low. The masks reduce infections, hospitalization, and deaths -- as shown in many studies.
As noted many times before N95 masks require proper training and usage to be effective. Most non-medical people who wear them don't properly use them.
Only the mentally handicapped believe cloth bandanas and silly gag masks bought on Amazon actually prevent the spreading of the virus. I could post dozens upon dozens of charts (and I have) that show how mask mandates were completely ineffective and provided no difference in places that were strict and had high compliance to those that did not.