Strange touch sensitivity when charging

Hello there!

I have had my iPhone 14 for 7 months now.

Since the beginning I've noticed a strange sensitivity with the touch screen especially when charging with the cover on. I have changed the cover and the problem persists. I have to say that as I bought it I had a protective film put on, so I have never had the phone "naked". But I have noticed that the touch input "jumps" accross the screen or it does not let me scroll easily only if it's charging with the cover on. I do not know if the problem is because of the covers or maybe it's because of the presence of both the cover and the protective film.

Does anybody else have this problem?