Description
The objects node gives you a variety of options to get data about the objects in your file.
Inputs
The index input can be switched to a Name input with the toggle on the node. This input defines the object which is returned by the Indexed output.
You can either choose an object by index (starting at 0) from the list of all objects in the file, or by the object's name.
Be aware that the object name and the mesh name can be different. If you know the object name you can get the mesh data over the blend data browser.
Outputs
All Objects: Returns a collection of all objects in your file
Active Scene Objects: Returns a collection of all objects in the active scene
Selected Objects: Returns a collection of all selected objects on the active view layer
Indexed: Returns the object that is selected by the index input, either by index or name