It may be possible to have Safeguard Authentication Services (SAS) and Red Hat's SSSD configured on the same system however it's not something One Identity has ever QA tested and at this time it is not supported.
SAS is a scalable and highly developed AD Bridge solution and SSSD is Red Hat's system service to access remote directories and authentication mechanisms.
If more information is required on this topic One Identity recommends reaching out to to the appropriate Account representative who can work with Professional Services who may be able to assist further with this integration.