Thank you for your votes and comments on this feature. The team is in the process of finalizing designs for deleting private chat threads. I will update as we have more progress to share.
An error occurred while saving the commentEvan V commented
I am not a tech person but, as a user, I would understand if the recovery of a deleted chat thread is not available. But no Delete on chat threads is a bit mind boggling.
Removing the Conversation Tab is being reviewed by the feature team.
For deleting chat messages, please following progress here: https://microsoftteams.uservoice.com/forums/555103/suggestions/33535006.