Microsoft Teams Mac download page unavailable

I had no trouble downloading Teams directly from Microsoft using Vivaldi web browser:

https://www.microsoft.com/en-us/microsoft-teams/download-app

If you have a MS subscription for Office, then logging into your MS account should give you access to the Teams download as well through the web interface for MS 365 or whatever it is called these days.

...but when I click on the Microsoft teams for Mac button it goes to "this page is unavailable". '

What button where? On the Microsoft site? A download hosting site? Other site?

Do you currently have Microsoft 365 installed? Formerly Office 365. If so you should already have Teams installed:

Also check with: https://support.microsoft.com/en-US/home/contact