On a unbounded Scene,How to use the UGUI to implement text input field

I want to create the text input field on a unbounded scene, but i found it can`t take up the visionPro virtual keyboard. how can i do that? any idea or any sample for this?

See this discussion here: Roadmap for UI Support on Polyspatial? - visionOS / Mixed Reality (Immersive) Apps - Unity Discussions

Short answer is that this isn’t a Bounded/Unbounded issue. There are many having issues with the keyboard popup that are being worked through there.