macOS command line utility to work with default apps. You can use utiluti to inspect and modify default apps for url schemes and file types/uniform type identifiers (UTI).
identifier utiluti and anchor apple generic and certificate 1[field.1.2.840.113635.100.6.2.6] /* exists */ and certificate leaf[field.1.2.840.113635.100.6.1.13] /* exists */ and certificate leaf[subject.OU] = JME5BW3F3R