[bluGill]

Most people are not in a niche where finding a job depends on location, and those that are already live in that city.

Doctors can find a clinic to work at nearly anywhere. If their partner needs to move they can go with.

[fhd2]

Sure, depends on the field. Some fields can't realistically WFH to begin with. Some easily can though. If you have a doctor and a programmer, the doctor can work at a hospital that provides the best career opportunity for them, while the programmer can work at the place that provides the best opportunity for them, given WFH.

If both can WFH, they can even choose the place they want to live in regardless of where their optimal employment options are based.