No, rocksdb is currently only used by account_history_rocksdb (which is deprecated in favor of sql_serializer). But despite the deprecation, account_history_rocksdb will probably be used for a long time just because it takes less resources than a full HAF database. And there's also a possibility to use it for a better version of something like MIRA eventually (i.e. to store more data that is currently stored in chainbase).