This is about the UK
I see that, as mentioned above, the word Passport is being used in reference to domestic access to pubs, restaurants, cinemas etc. Irritating.
Further I read, as the UK govt promotes the idea of the domestic vaccination passport, many politicians (of all flavours) are against this. I can guess the press will do their usual of jumping on bandwagons and, as they drive along, muddying the waters - to mix metaphors.