Zend certified PHP/Magento developer

Magento 2.4.6: how to setup cron for group:index to run less frequently than every minute?

Cron tasks in Magento are executed every minute and when product import and indexing tasks are executed simultaneously database deadlock occurs. Changing settings in “System > Cron (Scheduled Tasks) > Cron configuration options for group:index” doesn’t help, all indexing tasks still run every minute.

How can I make it to run every e.g. 30 minutes at least? I don’t want to change frequency of main cron (bin/magento cron:run) so that other tasks wouldn’t be affected.