Metaverse integrations

hello folks,

I am particularly interested in the technical aspects of your Meta's Metaverse platform integration, and I would like to inquire about the 2 features:
• It is possible to connect/ recall Web-Views (iFrames) in metaverse scenes? The underlying aim is to be able to open a navigable window on browser pages while remaining within the metaverse.
• If I am expected to use a private or custom pre-existing login system, can it be integrated?

Thank you in advance for your time and support!
Filippo