Checkout UI extension - Billing address options hook or API

[hanhduong]

Hi, I'm developing a checkout extension for the billing form during the payment step of the checkout process.

I've searched through the documentation, but I can't find any API or hook that can notify me which option the user has selected ("Same as the shipping address" or "Use a different billing address").

I'm looking for a hook similar to useShippingOptionTarget that can provide the selected shipping option in the shipping form.

Thank you

[RPXBinary]

Same requirement here. did you found any solution on this? if yes then please share the solution
Thanks.