I actually found a key tiger:GEOIDFQ (see https://taginfo.osm.org/keys/tiger%3AGEOIDFQ). But if you don't know the added value of a key, it's better to leave it out. And based on my findings https://stackoverflow.com/questions/78518131/postgis-3-4-0-tiger2023-state-data-new-column-geoid-geoidfq-not-in-tiger-state, I would even define it as an irrelevant technical ID from the source.