I've been creating USDA files manually and converting them to USDZ via Apple's usdzconvert tool (version 0.64).
In the file I set unit size to be 1 meter
metersPerUnit = 1.0
but the USDZ keeps the unit size at 1 cm.
Apple's Reality Converter does process the metersPerUnit metadata, so that is a viable work-around for me. But sometimes I'd prefer the command-line tool.
Is there an update to the usdzconvert tool? I couldn't find one.