Certifications related to Software Architecture can be categorized as:
Useful for knowledge & building your foundation as a software architect. It might not be very popular for your resume but adds depth to an architect’s overall core competency.
Useful for specialized certification into vendor technology (e.g. AWS, GCP, Azure, Salesforce) . These are very useful for building knowledge of focus areas such as Cloud, Data or offerings by any vendors and helpful for getting recognized or getting hired in the market.