Some people do add a little introductory comments in the end of chapter, usually reminding/inviting the readers to subscribe to their other series or social media. What I see more often is they only do introduction about themselves in their profiles or first episode.
I don't do it because nobody cares about me ď¸
Usually I only thank them for reading, give them a little interactive questions (which those are stupid because I am bad at interaction), and announcement if anym