Hi this is a known issue in the Samples that will be fixed in the next Snapdragon Spaces release.
Running the scenes in the editor is indeed supported. You can make the fix yourself by modifying a script in the sample scenes trying to enable passthrough in the editor. Please check out this existing thread for the solution: https://support.spaces.qualcomm.com/a/forums/topics/72000788707
Kida-manabu
After installing QCHT 4.17 and Spaces 0.23.2 from the tar ball in Unity, when I open the QCHT sample QCHT Sample - Menu Spaces and run it in Unity Editor, Unity Editor crashes.
Is this a sample that cannot be run in Unity Editor?