This article will allow you to setup a Web App for your Teams tenant that can be ran separately alongside the Desktop version, which allows you to view multiple tenants at once, without switching.

How to create a Web App

1. Open Microsoft Edge and go to Log In | Microsoft Teams
   
   
   
2. Select Sign in
   
   
   
3. Enter your company email address then select Next
   
   
   
4. Enter your company password then select Sign in
   
   
   
5. Select Use the web app instead
   
   
6. Select the ellipsis (3 dots) in the top right and hover over Apps
   
   
   
7. Select Install this site as an app
   
   
   
8. Select Install
   
   

You can then open the web app via edge by selecting the ellipsis (3 dots), hovering over apps then selecting Microsoft Teams.

How to create a second Teams Web App instance 

1. Open Microsoft Edge and select the profile icon in the top right
   
   
   
2. Select Add profile
   
   
3. Select Add
   
   
   
4. Select Continue without signing in
   
   
5. Repeat the How to create a Web App process to add another Tenant 
   Switch between Edge Profiles to open your saved Teams Web Apps