owl flight on Nostr: So when I click on a note in my timeline, it unfolds and shows replies. After ...

So when I click on a note in my timeline, it unfolds and shows replies. After unfolding, there is also a number displayed at the top of the original note that appears to be counting the replies and sub-replies.

However, as far as I can tell, before unfolding there is nothing in the original note that indicates whether it has any replies attached to it, or how many. Is there a reason for the number of replies not being shown before unfolding? Is it necessary to click on a note to see whether it has any replies or not?

I'm using the web client noStrudel. Maybe this would work differently in another client?