That's where the story gets tricky, and makes a Fed declaration of substantial further progress very much a judgment call.
When the Fed put the benchmark in place, the economy was about 10 million jobs short of where it was in February, 2020, before the first wave of pandemic layoffs. About half of those jobs have been regained.
Though 5 million missing jobs is a lot, Fed officials are banking that the record number of openings in the economy means the shortfall relates more to workers becoming choosier about the positions they will accept, an issue Fed policy can't really address, rather than inadequate demand for labor, a problem it could confront. Dialing back the bond buying is the Fed's way of saying that demand - for goods, services and workers - is strong enough now without that additional bit of help.