This is a manual trick used on mobile devices. While viewing a Story from someone else, you slowly swipe left or right to peek at the next Story without fully committing to the frame. Requires no extra software.
: Some users create a "burner" account with no personal information to view stories without their main identity being revealed. facebook story viewer anonymous
Users frequently bypass native tracking through various "offline" or "partial" viewing methods: This is a manual trick used on mobile devices