Supervision policies in Microsoft 365 are defined as capturing employee communications for examination by designated reviewers (docs.com). In layman's this means policies can be set up for someone to review team members communications who may be disclosing sensitive information or violating HR policy in the use of profanity, racial slurs, taunts or sexually explicit language in Teams channels and private messages.
We all love Microsoft Teams. Day in and day out, you'll see us evangelising it on social. On forums such as the Tech Community we help others with enquiries and issues. We run user groups. We write blogs. We speak at events. We vote and create uservoices. We ask all the questions we can think of at that time on the community AMA's.