Yes, graphene oxide is in the vax, Polyethylene glycol (PEG) and polyethylenimine (PEI) were used as COATING polymers. Search term would be "PEGylated graphene oxide" "GO-PEG" or "GO-PEI" thereby negating having to list Graphene oxide in the formula. PEG &/or PEI ARE listed in the formula.
SS#1 https://pubmed.ncbi.nlm.nih.gov/26814441/
SS#2 https://www.verywellhealth.com/peg-compound-in-covid-19-vaccine-5119161
SS#3 https://www.verywellhealth.com/covid-19-vaccines-ingredients-lists-5093385