If you're 18 or older, you can have a public My Story which is separate from your My Story for friends. Your followers will see the Stories posted to your public My Story in the 'Following' section of the Stories page. Anyone viewing your profile can also see your active public Stories. If you’re a creator who has established a wide audience, your public Stories could be recommended to the Community on the Discover section. Snaps posted to your My Story · Friends will only be visible to Snapchatters you are friends with.
If you had a My Story with 'View My Story' privacy setting set to 'Everyone,' the publicly visible My Story has been replaced with My Story · Public. You still have the 'Custom' or 'My Friends' options for My Story · Friends!
Your public My Story can be found as a posting option titled My Story · Public in the Send To screen. Use My Story · Friends to post to just your friends.