Microsoft Teams Apps cannot be uninstalled

On the desktop Teams a Teams app can be simply removed by right clicking on the app icon and picking the uninstall option from the drop down. 

That is not possible on the mobile version of Microsoft Teams.

The mobile (Android) version doesn't have any uninstall feature. Or if it exists it's hidden. Nor does Microsoft provide any information on how to install them. And oddly the apps remain on the mobile version if they were installed via the mobile version. So telling me to remove them via desktop is not an option.

So where exactly is the "undelete" or "uninstall" apps button inside Microsoft Teams mobile?