Read Page 12 of Pfizer-BioNTech COVID-19 Vaccine EUA LOA reissued August 23 2021. Quoting...

X. All descriptive printed matter, advertising, and promotional material, relating to the use of the Pfizer-BioNTech COVID‑19 Vaccine shall be consistent with the authorized labeling, as well as the terms set forth in this EUA, and meet the requirements set forth in section 502(a) and (n) of the FD&C Act and FDA implementing regulations.

Y. All descriptive printed matter, advertising, and promotional material relating to the use of the Pfizer-BioNTech COVID‑19 Vaccine clearly and conspicuously shall state that:

• This product has not been approved or licensed by FDA, but has been authorized for emergency use by FDA, under an EUA to prevent Coronavirus Disease 2019 (COVID-19) for use in individuals 12 years of age and older; ...

The Pfizer vaccine hasn't been approved. Approval was given for the COMIRNATY "variant" of the vaccine.

https://www.fda.gov/media/150386/download