Is there a process to resolve an acting cabinet department position unfilled for longer than 210 days?

If a person is sworn in as an acting secretary of a cabinet department but never receives senate confirmation, and if the administration is happy with that decision, does anything ever really happen?

The Federal Vacancies Reform Act of 1998 is relevant but it seems to be focused on qualifications and how appointments are made. The relevant part on the wiki page mentions some 210 day deadlines, and says

If an office remains vacant after 210 days after the rejection, withdrawal, or return of a second presidential appointment nomination, it remains vacant until a person is appointed by the President, by and with the advice and consent of the Senate. In such instance, only the head of an executive agency may perform office functions until such appointment is made in the case of an office other than the office of head of an executive agency.

That seems to just say the position stays vacant until it’s filled. (I might not be understanding this fully)

I’m not sure what I expected, but I assumed there would be a process for resolving the confirmation/position and getting a person confirmed after 210 days. Instead it seems that nothing really happens. Does that person just continue in their current role indefinitely until the position is confirmed (president + senate)?