You can't watch followers' IG stories anonymously. Instagram is designed to protect users' privacy, and any attempts to do so unethically or illegally could get you in trouble.
Well, to change the Insta story background, first open Instagram. Then, go to the story creation section. There, you'll likely find options to select different backgrounds or upload your own image as the background.
Changing the background in an Instagram story is easy. Open Instagram, start making a story. You'll find the background change option either on the screen when you start or in a menu. It might offer different presets or let you select from your gallery. Just pick the one you like!
You can do it in the Instagram app. Just go to the story creation section and look for the background option. There should be different choices or the ability to upload your own image.
Changing the duration of an Instagram story is easy. When you begin making the story, there'll be an option related to time or duration. Explore the interface while creating and you'll come across it. Select the duration that suits your needs and you're good to go!
To change the time in an Instagram story, first, make sure you're in the editing mode. Then, search for a clock or time-related symbol. That usually leads you to the time adjustment settings. You can select the desired time from the options provided.