We’re working on an option in highlighted content to enable custom queries where you can provide the KQL or CAML and specify your own query. This will enable you to search by custom content types.
An error occurred while saving the commentAnonymous commented
I was not able to filter by Content Type. I created 2 content types based on Site Page: Tech Pages and Social Pages. I got the IDs from them and tried to filter where Managed Property ContentTypeId equals the ID...not working