@Swahela Mulla, Thanks for posting in Q&A. Based as I know, the script retrieval schedule is fixed based on when the Intune management extension service starts
https://learn.microsoft.com/en-us/mem/intune/fundamentals/remediations
Currently, there's no option to set custom scheduling intervals in remediation. And in the Intune development link, I don't find it is planned.
https://learn.microsoft.com/en-us/mem/intune/fundamentals/in-development
You can feedback in the following link to see if we can get this feature in the future.
https://feedbackportal.microsoft.com/feedback/forum/ef1d6d38-fd1b-ec11-b6e7-0022481f8472
Meanwhile, as a workaround, you can see if it can be deployed via Scheduled Task through Intune to do what you want. Here is a link with steps for your reference.
https://credibledev.com/how-to-deploy-a-scheduled-task-in-intune/
Note: Non-Microsoft link, just for the reference.
Hope the above information can help.
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