The devices that we have at home that provide us with the Wi-Fi network (routers) work by emitting waves at different frequencies. Lately the dual models are being extended, those that are capable of emitting both the usual frequencies and others less widespread, what is known as 5G Wi-Fi.
If we have a recent installation, especially if we have fiber, it is possible that our router already has this possibility. If so, it will be highly recommended that we connect our devices to that frequency as it will improve our experience in the use of the Internet.