Will I find electronic case report form (eCRF) vendor metadata in CDISC SHARE?

No, eCRF vendor metadata is not part of the existing CDISC standards and will not be captured in CDISC SHARE. Vendor-specific eCRFs are considered an implementation of the standards. You will find metadata needed to create eCRFs from CDASH and in Therapeutic Areas standards that include CDASH metadata.