It makes a difference.
Wireless chargers consist of electronic components. If the wireless charger is plugged into the socket for a long time, it is easy to cause heat, leading to aging of components and even short circuit, which greatly shortens the service life of the charger.
The wireless charger has been plugged into the socket, and although the phone is not charged, the circuit board charger inside is still turned on, and the wireless charger is in normal working condition and will consume power. Some research data shows that a wireless charger has been unplugged and consumes about 1.5 kilowatt-hours of electricity per year. The global accumulation of wireless chargers consumes a lot of electricity.
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It's okay.
The battery life of the mobile phone is calculated by the number of times the battery is exhausted and then full, that is to say, my battery in the morning is 50%, put it on the charger to full, and then use 50% again, and then full again, this time the number of charging cycles will only be counted once (50%+50%), rather than plugging in and charging 2 times. Under normal circumstances, the shallow discharge and shallow charging will not have much impact, and wireless charging is such a use of fragmented time charging, this impact should be negligible.