docs: tip on context managers for efficient remote processing (#2634)

Author: moe-ad

doc/source/user_guide/tutorials/data_structures/data_arrays.rst

@@ -566,3 +566,11 @@ a field's data can be recovered locally before sending a large number of request
     with my_temp_field.as_local_field() as f:
         for i in range(1,100):
             f.get_entity_data_by_id(i)
+
+.. tip::
+
+    When using a remote DPF server, accessing a field's data within the ``with`` context manager
+    ensures deletion of local data when exiting the ``with`` block. Following this approach is
+    advisable for efficient remote processing workflows since it guarantees non-persistence of
+    unnecessary local data, especially if the data is not needed beyond the code being executed
+    within the ``with`` block.