Regarding header and footer content, there are no strict specifications in the template or the guiding materials. Applicants can include the proposal acronym and action type in the header if they wish. In the same logic, REA would not reject a proposal for not having included the grey part “EU Grants: Application form (HE MSCA PF): V1.1 – 05.05.2022” in the header.
This is a possible option:
“Call: HORIZON-MSCA-2022-PF-01-01 – [MSCA Postdoctoral Fellowships 2022 – EF] ACRONYM” Or “Call: HORIZON-MSCA-2022-PF-01-01 – [MSCA Postdoctoral Fellowships 2022 – GF] ACRONYM”