Version 1.4 of Reality Composer is supposed to support export to USDZ (according to App Store update notes); However, I am not able to find anything in RC to do so. Anyone else have this issue?
How to export Reality Composer scene to USDZ file?
I actually solved my own problem. Export to USDZ is not enabled by default. To enable it, go to Settings -> Reality Composer -> Toggle on Enable USDZ Export.
I do enable usdz export, but still cannor export my reality composer project