It's supposed to look like the picture on the left. And it does on every Android 7+ phone that I've got (Samsung, Xiaomi, Nexus).
If it doesn't look like the picture on the left - this is probably be a device specific issue, Huawei must be trying to "make it look better".
We cannot change the icon dynamically based on the phone's manufacturer. Maybe Huawei has a setting to turn this "enhancement" off, or maybe it's just a bug?