Well, it varies. Usually, it's determined by the settings you set up. Maybe it's only visible to people you approved, or it could be accessible to everyone depending on how you adjusted the settings. Different apps and websites have different rules for this.
It depends on the platform or app you're using to share your story reactions. Some might allow only your followers or friends to see, while others could have broader visibility settings.
The visibility of your story reactions in 2021 typically depends on the privacy settings you configured. For example, on some social media platforms, you could choose to make them visible to the public, just your friends, or a custom list of people. Also, it might be affected by the terms of service and default settings of the specific platform.