Comment by lotsofpulp

Control can be separated from who is owed what share of economic profits. For example, some Alphabet and Meta shares having more voting power than others.

On a more pragmatic level, even in the US "own" means what society will defend for you. However, the US (and other western countries) are presumed to have courts that have a higher probability of defending claims of ownership assuming you have the right paperwork. Whereas in places like China, it is presumed that your paperwork is less likely to entitle you to a defense.