Additional features, settings, or issues not covered by specific Microsoft Teams categories
Hello ChenServ,
According to your description, I'd like to double confirm whether you selected "Share PowerPoint" or "Share screen" for the meeting. Suppose you select "Share screen", it is a normal behavior that all notifications and activities will be included. For your reference: Share content in a meeting in Teams.
If you don't want the participants to see your notification, it is suggested that you go to iPad settings and then turn off the banner notification because it is not feasible to stop it within Teams.
If you need more help, please feel free to let me know.
Regards,
Seven