I have a shared teams account on a screen and I need all the messages to auto delete or to hide all the team channels every hour automatic for every chat/ message that has been sent. This is so the next user to use the teams wont be able to see the last users information or messages.
I don't believe what you want to do is possible. You would need to set up retention policies on Teams, which would affect your entire tenant and not one specific Team. Manage retention policies for Microsoft Teams - Microsoft Teams | Microsoft Docs. We looked into this, and ended up implementing Signal for people who don't want chat history saved.