Displaying your screen content to others during a Teams meeting or call for collaboration
Hello Alan Pena,
Good day! Thank you for reaching out.
To hide your Teams chat conversations while sharing your screen in a meeting,
You can choose to share a window and not the entire screen in case you only need to show one thing and want to keep the rest of your screen to yourself.
Instead of sharing your entire screen, share only the specific window or application you need. This way, your chat window won’t be visible to Click shared and select Window to select from open programs.
You chat you private chat without the attendees see them.
However if you are using the share screen option with the teams main chat window in the background, this seems to be the default. If you want to share a entire screen it is not feasible to hide the conversation you have with others person
I do understand your concern and how it can they can affect your privacy and as it is related with the product design, I'd strongly recommend you submit your valuable feedback directly to the product development team through the teams app (Help >Suggest a Feature or Give Feedback or by posting on Microsoft Teams · Community.
In case I misunderstood you in anyway, please let me know.
Best Regards,
Eben