It would be interesting for app developers to have the ability to search specific fields on the https://developer.atlassian.com/cloud/jira/service-desk/rest/api-group-request/#api-rest-servicedeskapi-request-get endpoint, therefore having a query parameter would be interesting.

This is currently also performed for the Search for Issues using JQL (GET) https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-issue-search/#api-rest-api-3-search-get endpoint.