It depends on your Teams account type.
If you have an personal Teams account, you could install the Teams client for home and business. If you have Work account (usually assigned by an IT admin as a part of an organization with a license to use Teams) or School account (as part of a school or educational institution), you need to install Teams for work or school. You could identify which version of Teams you're using from the icon. For more details, you can refer to:
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