Can the group see that you left iMessages in a group?

I was part of a group chat on iMessages (we all have iPhones). There was a grey sentence on the bottom "You left the conversation at 8:13 PM". Am I the only one who can see that or can everyone in the chat see it?

Yes, they will see it too. But, even if they couldn't, they still have the list of people that are in the group at the top, so when you left they would know either way.

If you leave, everyone in the chat can see it

Yes