HI @Barron E
According to your case description, you will receive a full-screen reminder of "Update Teams", but the file downloaded by the link you visited has problems.
It is recommended that you clear the Teams cache and open the client to manually update.
Or go to "Start" -> "Settings" -> "Apps". - Under "Apps and Features", find Microsoft Teams and click "Uninstall". Visit the following link to re-download and install Teams.
https://www.microsoft.com/en-us/microsoft-teams/download-app
Thanks for your understanding and support.
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