Technically yes, as do those switches internally, but if the device you’re plugging in is switched off or pulls a very small load it won’t be much. If you’re plugging in an air conditioner or something that’s going to present a big inductive load, and it is switched on so it will get power the instant it plugs in, yeah you might see a little flash of light. make sure such things are switched off before plugging them in.
Technically yes, as do those switches internally, but if the device you’re plugging in is switched off or pulls a very small load it won’t be much. If you’re plugging in an air conditioner or something that’s going to present a big inductive load, and it is switched on so it will get power the instant it plugs in, yeah you might see a little flash of light. make sure such things are switched off before plugging them in.