If you cannot download the recording in the Teams client, you can go to Stream to check if the file is available.
However, if you have no access to Stream or the recording doesn’t get uploaded to Stream, the file is stored in Teams cloud storage, where it’s available for download for 20 days. In this scenario, you cannot download the recording file after expiration.
For more details, please refer to this article:
https://learn.microsoft.com/en-us/microsoftteams/cloud-recording.
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