In order to 'Pin' the MS Teams App so that it constantly appears on the left-hand panel on your Teams platform, you need to open the app, and then Right-Click on it to see the options below:
Then, simply select Pin.
In order to 'Pin' the MS Teams App so that it constantly appears on the left-hand panel on your Teams platform, you need to open the app, and then Right-Click on it to see the options below:
Then, simply select Pin.