Hi Troyjack
Welcome to the forum. My name is Segunfunmi, and I am an Independent Advisor and Microsoft user just like you. I appreciate you reaching out to me with your query.
Turning off Microsoft Teams pop-ups alerts
Here’s how to hide banner desktop alerts in Teams:
Open Microsoft Teams desktop or web client.
Hit your user icon on the right-hand side of your upper Teams bar.
Then, hit Manage Account to open your Teams Settings.
From the left-hand side of your Settings dialogue, select Notifications.
Then, hit the Custom button.
I took the above steps from the following link. Please check the link for more details.
https://www.easytweaks.com/disable-microsoft-teams-notifications-sounds/
I hope that the information provided has been helpful to you. If you have any further questions or concerns, please feel free to ask.
Warm regards Segunfunmi