Google Does Read Unsupported Structured Data But Won't Result In Rich Results

Google's John Mueller said on Twitter that Google is able to read unsupported structured data, structured data that is in the schema.org docs but is not listed by Google as something they support on the Google developers site. But I would not expect you to see rich results from any of those unsupported structured data schema elements.

from Search Engine Roundtable https://ift.tt/3ovuNEr