If you don't want someone's story to appear in the bar at the top of Feed, you can mute their story.
Mute someone's story
- At the top of feed, tap and hold the profile picture of the person whose story you'd like to mute.
- Select Mute, then tap Mute story.
Unmute someone's story
- At the top of feed, tap and hold the profile picture of the person whose story you'd like to unmute.
- Tap Unmute story.