Comments And Updates On Product Page

Hello, I’m testing out all the features and I can’t figure out the project page’s updates and comments. I added a comment in the admin panel, but it’s being displayed under the uploads in the product page. And I wrote an update in the admin panel and nothing new was displayed. So I am asking how does this work?

Is the admin commenting considered an update?
It would be a lot of help if you could explain how this part works.

Sincerely,

Nova1k