Sorry, I don't think that's right. The CDC were terrible at messaging. It constantly sounded like they flip flopped, came up with absurd requirements. What's worse so many Americans took what they said as dogma, and massively attacked anyone who questioned their nonsense.
From https://reason.com/2022/02/07/that-study-of-face-masks-does-...
"A study[1] published by the Centers for Disease Control and Prevention (CDC) supposedly shows that wearing a face mask in public places dramatically reduces your risk of catching COVID-19. The CDC summed up the results in a widely shared graphic[2] that says wearing a cloth mask "lowered the odds of testing positive" by 56 percent, while the risk reduction was 66 percent for surgical masks and 83 percent for N95 or KN95 respirators.
If you read the tiny footnotes, you will see that the result for cloth masks was not statistically significant. So even on its face, this study, which was published in the CDC's Morbidity and Mortality Weekly Report, did not validate the protective effect of the most commonly used face coverings—a striking fact that the authors do not mention until the end of the sixth paragraph.
In 2020, the CDC went from dismissing the value of general mask wearing[3] to describing it as "the most important, powerful public health tool we have." In September 2020, then–CDC Director Robert Redfield asserted[4], without any evidence, that masks were more effective at preventing infection than vaccines would prove to be. Even before the spread of the highly contagious omicron variant, Redfield's successor, Rochelle Walensky, implied the same thing, exaggerating[5] the evidence supporting mask use in a way that made vaccination seem inferior."
So even in 2022, they are misleading the public.
[1] https://www.cdc.gov/mmwr/volumes/71/wr/mm7106e1.htm
[2] https://www.cdc.gov/mmwr/volumes/71/wr/social-media/mm7106e1...
[3] https://reason.com/2020/04/06/the-cdcs-revised-face-mask-adv...
[4] https://reason.com/2020/09/17/suggesting-that-face-masks-are...
[5] https://reason.com/2021/11/09/the-cdcs-director-implies-that...