Is a husband entitled to destroy his wife's property (her phone) if she is disobedient and refuses to obey him in refraining from social media?

It is not permissible for a husband to destroy his wife's property, even if she is disobedient (nashiz), and he must guarantee it. This is because he is not allowed to destroy anyone's property. The Prophet forbade wasting wealth, which means spending it in unlawful ways or exposing it to destruction.