The one I highlighted in blue or in red? 
It’s my own feed. Maybe I don’t know how to use Damus. None of these people are on my “follow” list.
Discussion
Blue.
And you say it’s posts from people you don’t follow?
It could be that some people you know are reposting those notes. You could mute the reposted stuff or see if you really want to follow the ones who repost
Yes, you made me question my sanity. I will pay attention next time.
There’s one relay you’re connected to relay.nostr.band that grabs notes from all types of sources. You could try disconnecting from it temporarily. See if it changes something. But the home tab is usually people you follow
I added relay.nostr.band recently. This problem existed before that 🫤