LTE (Long-Term Evolution) and Wi-Fi are two different technologies that enable wireless connectivity on mobile devices. When your device is connected to Wi-Fi, it uses the Wi-Fi network to transmit data instead of using the cellular network.
However, even when your device is connected to Wi-Fi, it may still show the LTE symbol in certain situations. This is because LTE is the underlying technology used by your mobile device to provide cellular data connectivity. The LTE symbol indicates that your device is still connected to the cellular network, but it is not actively using it for data transmission.
There are several reasons why your device may continue to show the LTE symbol when connected to Wi-Fi. For example, your device may be using LTE for voice calls or text messages, or it may be using LTE to transmit data that is not supported by the Wi-Fi network. Additionally, some devices may switch between LTE and Wi-Fi networks depending on the strength of the Wi-Fi signal or other factors, which can cause the LTE symbol to appear briefly even when connected to Wi-Fi.
In summary, the LTE symbol may still appear on your device when connected to Wi-Fi because LTE is the underlying technology used for cellular data connectivity, and your device may still use LTE for certain types of data transmission or when Wi-Fi connectivity is not available or optimal.