It appears that I predicted the future about Microsoft adding Azure Remote Rendering into Guides!!! This message appears in the Release Wave 2 for Guides:
"https://learn.microsoft.com/en-us/dynamics365/release-plan/2023wave2/guides/dynamics365-guides/?source=recommendations to the application, which makes it significantly easier to use any 3D assets on HoloLens 2."
Yay!!
Unfortunately "adding text labels to a guide" seems to have not been implemented yet from https://learn.microsoft.com/en-us/dynamics365/release-plan/2023wave1/guides/dynamics365-guides/ and is not mentioned in Release Wave 2, although I have been needing this feature for some time (due to the Step Card only allowing 8 lines of text.....)
I am super happy to hear that Azure Remote Rendering will be coming into Guides!