Mastodon has a variety of timelines. Here are some examples

• Home Timeline: A timeline that contains posts by you and the people you follow.
• Local Timeline: A timeline that contains the posts of the users to which you belong.
• Federated Timeline: In addition to the local timeline, this timeline contains the posts of other users on the server that you are following.
• Hashtag Timeline: A timeline where only posts with the specified hashtag are played.

Most of these timelines are available in feather and can be tabbed.

It is especially useful to keep tabs on hashtag timelines to browse posts related to keywords of interest to you

Reactions (replies, favorites, boosts, etc.)

Do replies, favorites, etc.

Put timeline in a tab

If you open any timeline and the + button appears in the upper right corner of the screen, you can add it to a tab.

Tap the + button to add it to the tab.