Thanks for reaching out to Q&A.
As you are aware, the 230 seconds is a timeout configured at the Azure App service load balancer. This is a part of the Azure App service architecture and cannot be configured or changed.
Here is an explanation of the architecture, it is for HTTP triggered function but it is applicable for Azure App service as well: https://learn.microsoft.com/en-us/answers/questions/758823/httptrigger-response-timeout.html
Official documentation: https://learn.microsoft.com/en-us/troubleshoot/azure/general/web-apps-performance-faqs#why-does-my-request-time-out-after-230-seconds
I hope this helps!
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