Doesn’t look anything like a hyena. Look at what hyena pups look like on google:
https://www.google.com/search?q=hyena+puppy&sxsrf=ALeKk03EErz0Qg0liC2G8BL-OuVz7YlRkw:1628287441041&source=lnms&tbm=isch&sa=X&ved=2ahUKEwi4qI-0s53yAhWYZM0KHfn-De0Q_AUoAXoECAEQAw&biw=1333&bih=654
I found some Striped Hyena pups. Want.