Groups within Teams Free for shared interests, collaboration, and communication
Hello,
What do you mean by it is for "Live"?
Teams has gone through a lot of new updates, and it doesn't provide any way to go back to older version.
Is your Office 365 a personal/family plan, or a business plan? Depending on the plan difference, you could be seeing some different features. Regardless, you should be able to use Teams for groups of less than 10 and to do audio and video calls. These key features don't change.
Feel free to include any screenshot so I can understand the issue a bit better.