The LG Stylo 4 is not NFC enabled, it does not have the required special circuitry, or the required special NFC Antenna.
NFC (Near-field communication) and Bluetooth are both short-range communication technologies. NFC is much slower than Bluetooth, and NFC has a very, very short operating range, typically less then 20cm (that’s about 7 inches, max). An NFC enabled Cell-Phone will have special circuits (special chips and software) and a special antenna, to perform NFC communication with another NFC enabled device (within that 20cm operation range). Again... the Stylo 4 does not have this circuitry.
NFC is gaining in popularity in the US (already popular in Europe) as a way (with an NFC enabled phone) to quickly pay for a purchase (charged to your bank or credit card), at a special NFC reader (if the seller/store has the required NFC reader to allow for the "Tap-and-Go" purchase). NFC is also useful (although slow) as a way to transfer (wireless) data from one NFC device to another device (IE. Two cell phones back to back).