You can get all cron job detail in
.magento.app.yaml file located on your docroot of your Adobe Commerce Cloud website. In this file, you can see something like following.
crons: cronrun: spec: "* * * * *" cmd: "php bin/magento cron:run"
Generally, you can use the following command to get the list of all cron jobs on your server but this command may not work if the auto-crons self-service configuration option is not enabled on the Adobe Commerce Cloud project. To enable this option you can contact Magento support or generate a ticket from your Magento account.
If you are looking to create a custom cron job in your Magento 2 commerce cloud project then you can review our blog post How to create a custom cron job in Magento commerce cloud.