Thank you for answer :) I found out that I can use FetchDescriptor to get data from modelContext.

After testing the code with the information you provided, I confirmed that modelContext itself must be used within the View. This could be seen through the purple error. And I found out that @Query doesn't work outside of View because it depends on modelContext even though it isn't specified itself. Do I understand this correctly? I will check it out and submit a report to the SwiftData team if there is any need as you mentioned. Thank you for answer :)