Checkout UI extension - Billing address options hook or API

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

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