First of all, let's talk about the cute round face, which is generally young and looks very childlike. If you want to keep bangs, you'd better choose thin bangs in the figure of eight instead of thick bangs. It seems that the whole person will be heavy and boring. I think the round face is most suitable for the kind with thin hair on both sides of the cheek and a ball head, and the whole person will be particularly young and lively.
Girls with long faces are more suitable for air bangs, and girls with thick bangs hate long faces. Choosing air bangs will cover your face and make it look smaller and less boring. It will be very feminine to roll a small wave. At present, I have almost this hairstyle. The only bad thing is that it is still a little troublesome to take care of the air bangs.
I think the diamond-shaped face is best for keeping bangs, because the cheekbones on both sides of the diamond-shaped face will be more prominent. You should choose the one with longer sides to cover the prominent cheekbones and modify your face. This hairstyle can refer to Song Hye Kyo Jing in Descendants of the Sun. Very sweet and ladylike.
A square face is the least suitable for keeping bangs, because a square face is square in itself, and keeping bangs will only highlight your shortcomings. It is recommended to choose the middle part, preferably the middle part that looks fluffy and radian, which can modify the deficiency of your face and make yourself look more delicate and lovely.
Finally, I advise you to choose a hairstyle that suits your face! Don't think other people's hairstyles look good, just follow suit! You should consider other people's faces as well as yours.