The Algolia indexing queue cron job runs independently of Magento's standard cron and must be configured separately via
crontab as described here.
There is not currently a way to check the configuration of that job within the Magento admin itself.
Checking/modifying the cron job requires access to the server where Magento is hosted. Typically this means SSH (i.e. CLI), though some hosting providers may supply an alternate user interface via a dashboard to configure cron (e.g. cPanel).
If you need assistance in accessing/checking the cron job, we suggest contacting your hosting provider as they may be able to assist with this fairly simple configuration.
Our team has roadmapped the addition of the cron schedule for Algolia queue runner as a system config field in the Magento admin for a future release of the Algolia extension.