inspecting the create date of the last note in a conversation.

How would I get the create date of the last note added to a conversation in a workflow?

I can get the note collection from the note by conversation.

But without iterating through all the notes to find the youngest one is there a way to just fetch the array length?

assuming step 2 is the get notes by conversation getting the most recent created note would formulated how?

/#steps.2.body.data.//lastentryindex//.attributes.createdAt