At the end of May, Instagram released the Mute feature that allows them to continue to follow others but no longer see their posts on Feeds, quite useful for acquaintances that you are afraid to cancel following but don't want to see your posts they.With this feature, users have a little more control over their followers.
To see if you have this feature, go to the Profile page of the person you want to delete, open the 3 dot icon to the right of the user name and see if there is a Remove option.
See more: