In name only

[Merna]

If a situation exists in name only, it is officially described that way, although that description is not completely accurate:

[Luis Fok]

having a particular title or name without the characteristics or duties that usually come with that title:

[Mark Zuckerberg]

by title or repute though not in fact

[Mendocky]

In name only refers to a title, status, or position that exists officially or formally but does not have the actual power, influence, or presence that it typically suggests. This phrase often implies that the substance or genuine qualities behind the name do not exist or are lacking.