nominally
adv. manneradv. describes something that exists in name only, but is not true in reality. You use it when a title or a rule is official, but it doesn't actually change how things work.
adv. in name or form only, rather than in fact or reality. Often used to describe a status or role that lacks the actual power or function usually associated with it.
He is nominally the leader, but his assistant makes all the decisions.
The country is nominally a democracy, though in practice a single party has held absolute power for decades.
While the company is nominally headquartered in a small offshore jurisdiction for tax purposes, its entire operational infrastructure and executive team remain in London.
From nominal + -ly.
Typically modifies adjectives or verbs to indicate a discrepancy between official status and practical reality.