it was brought up here: Questions about the ItemsQuery date filters that date column values do not return deadline related fields.
A) the status column and optional people column, as well as if a column is configured as a deadline are not exposed in settings_str.
B) any related value such as
done_on_time are not exposed in the DateValue.
Bringing this up because the ability to filter on these values seems to be a part of 2023-10
ItemsQuery for Date columns - but there is no way to return the actual values.