That's your WiFi signal indicator next to your signal strength and the battery indicator. It is showing you have a connection to the WiFi if it doesn't show then you are connected to either 3G/4G or if you have 5G enabled on your device.
That's your WiFi signal indicator next to your signal strength and the battery indicator. It is showing you have a connection to the WiFi if it doesn't show then you are connected to either 3G/4G or if you have 5G enabled on your device.