Ummm. No
CDA, PVAC, N2, H2/N2, O2, CO2, MA, NO2, He, etc are run in copper in industrial, factory and healthcare settings all the time
Current project I’m on has CDA in aluminum 3-6” and Copper/Viega 1/2”-2”. Not a huge CDA plant, but larger than your typical home shop at 4,060cfm @ 125psi...