Do you mean that your organization updates all Teams clients by group policies?
If so, it will not be finished. The reason is Teams doesn’t give admins the ability to deploy updates through and delivery mechanism. For more information, you could read this article.
Given that, your IT admin can clean up the Teams deployment and redeploy Teams with the latest package by this link.
Last but not least, giving the permissions of Teams auto update for each user. You organization will gain benefit from it.
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I'm happy that my reply is helpful :)
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Have a nice day!