Hi @Anonymous - Below is the information about Protecting Personal Data in the Cloud and Azure customer data protection.
https://learn.microsoft.com/en-us/compliance/regulatory/offering-ISO-27018
https://learn.microsoft.com/en-us/azure/security/fundamentals/protection-customer-data
However based on the information you shared, not sure I understand your query about Application Insights in what context you are using it in your scenario and what query you have on that.
Please review the above links shared and let us know if you still have any further queries. Thank you
Regards,
Bharath