<p>Install teams Desktop. Official Link given below,</p>
<p><a href="https://products.office.com/en-in/microsoft-teams/download-app">https://products.office.com/en-in/microsoft-teams/download-app</a></p>
<p>If Dev mode is enabled, Right-click the Teams tray icon and choose Open Dev Tools.</p>
<p>Else, Enable Dev Mode by following below steps,</p>
<ul>
<li>
<p>Open Show hidden items to see the Teams tray icon</p>
</li>
<li>
<p>Click Teams tray icon 7 times. (Normal left click)</p>
</li>
<li>
<p>Now right click the Teams icon and you’ll see all Dev options.</p>
</li>
</ul>
<p>Update:</p>
<p>Now a new menu called DevTools opens as shown in image. Previously lot of dev options will show directly.</p>
<p><a href="https://i.sstatic.net/nrNO4.png"></a></p>