Final answer:
User1 should be enrolled in the Insider channel to receive updates with pre-release features. User1 should be enrolled in the Microsoft Office Insider Beta Channel to receive updates that contain Teams pre-release features, which is the earliest channel for new features and updates.
Step-by-step explanation:
User1 should be enrolled in the Insider channel to receive updates that contain teams pre-release features. The Insider channel is designed for users who want to get early access to new features and updates before they are released to the general public. By enrolling in the Insider channel, User1 will be able to test and provide feedback on the pre-release features.
User1 should be enrolled in the Microsoft Office Insider Beta Channel to receive updates that contain Teams pre-release features, which is the earliest channel for new features and updates.
To ensure that User1 receives updates that contain Teams pre-release features, they should be enrolled in the Microsoft Office Insider program, specifically the Beta Channel (previously called Insider Fast). The Beta Channel provides the earliest access to new features, updates, and fixes, allowing users to test and provide feedback on upcoming product releases. It's important to note that features in the Beta Channel can be less stable than those released in the Current Channel (Preview) or the Current Channel, which provide more polished previews and final releases, respectively.