Join the waitlist and follow their annoying instructions to set your homepage to bing, install the mobile app, and install Microsoft edge dev preview. Do it all through their sign-up flow so you get credit for it.
I can confirm the silliness btw. Shortly after the waitlist opened, I posted a submission to HN displaying some of this behavior but the post didn’t get traction.
Nope, not without hacks. It behaves as if you haven't any access but says "Unlock conversational search on Microsoft Edge" at the bottom and instead of those steps to unlock it has "Open in Microsoft Edge" link.
I can confirm the silliness btw. Shortly after the waitlist opened, I posted a submission to HN displaying some of this behavior but the post didn’t get traction.