Which in itself is kinda difficult to understand and definitely not flexible enough for easy usage.
So what are your approaches to show websites inside a scene? With a unity website export it seems to have been possible. So It should be possible in general? The websites need to be fully interactable.
As HTML is script based and Babylon.js is image based it is not possible to have a fully interactable website rendered in Babylon.js. It is possible to display an image of a webpage in Babylon.js.