WordPress Multisite Shared Cookies with Multiple domains

I have a strong feeling you can no longer do this, but here it goes.

I’ve got a WordPress Multisite using two domains (For our example: domain-one.test and domain-two.test).

I would like shared user session/cookies between the two sites. Example user experience, a user logs into domain-one.test and later navigates to domain-two.test while maintaining the user session.

What are the wp-config and other settings to achieve this, or has this kind of functionality been fully shot down?