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Overall, there’s not a massive amount of difference between the Microsoft Teams desktop app and the web client.
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For example, having a large number of browser tabs open while accessing the Teams web client may result in a less than optimal call, while using outdated hardware may affect performance regardless of which version of the app you are using. Of course, the actual performance that a Teams user receives depends on lots of factors aside from whether they are using the web or desktop applications. However, the desktop version can leverage the power of the user’s device hardware, rather than relying on the browser alone, so it would make sense if the performance was at least slightly better. Anecdotally, users have indicated that the desktop app does deliver better performance, but there is little in the way of concrete evidence to back that up. The performance of the web and desktop versions is not easy to compare. For hopping on a quick call, the web version might be easier than loading up the app. Ultimately, the version that’s best for you might depend on what you are using Teams for at any given time. However, if you frequently use the platform for its extensive collaboration features, you may find that that web version is lacking somewhat. If you only really use Teams to take part in video calls, then the web client should be sufficient. No matter what device you are using, it will probably have access to a web browser, which means you can take part in your Teams calls without having to download the app again. Perhaps the only real advantage of using the web version of Teams instead of the desktop app is its accessibility. Other well-known browsers like Safari and Firefox have a lot of functionality missing. Although the only feature not included in Google Chrome compared with Edge is the ability to park and retrieve calls.
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Unsurprisingly, Microsoft Edge delivers the best user experience for anyone using the web version. Although Teams works with most modern web browsers, users may find slightly better functionality with some over others.
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