I’m not sure what two different logins would give you, since users would have to register twice, log in twice, and there would be no connection between the two accounts.
But def pilot what you think might work, it’s a great way to learn.
Indications are that Webflow is moving in this direction now. Check out the new Memberstack apps integration, it may have content security capabilities that exceed the traditional JS-only Memberstack install. If not yet, then hopefully soon.