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Are there any better tools for internal communication in an organization?

Recently, I came across a comparison called Yammer vs Teams. Both are products developed by Microsoft.

Why would Microsoft launch two different tools for the same purpose?

Also, for the prospect of Business growth what would be better between Tableau vs Microsoft Power BI?

Would these software work in an enhanced interactive way display the business potential in easily understandable graphs and other aids?

Finally, If I use the Microsoft ecosystem for a business, how would Onedrive be beneficial for my business?

I believe this comparison of OneDrive vs GoogleDrive is written to emphasize on the benefits of Microsoft Ecosystem

Thanks in advance.

Regards.