I feel that if I am only posting notifications, Connectors should suffice.
You’re right.
Bots are automated programs that respond to queries or give updates and notifications about details users find interesting or want to stay informed about. Bots allow users to interact with cloud services such as task management, scheduling, and polling in a Teams chat.
Connectors keep your team current by delivering content and updates from services you frequently use directly into a channel. With connectors, your Teams users can receive updates from popular services such as Twitter, Trello, Wunderlist, GitHub, and Azure DevOps Services in their Teams chats.
For more information, please refer to the Bots for private chats and channels and Custom connectors parts in this article.
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