Another useful video. Good to know some of the use cases so I can store it in my memory bank for future projects when required. I'm sure I will come back to this video again soon. Thanks for sharing, April.
No, it shouldn't have been removed. Host is still a valid Power Fx function. If you try it outside of the App section, say, in a button on select, you should see the host function working there. Let me know if you don't see it