I’ve been hit by lightning twice and none of the systems went out but it damaged the aircraft both times. I’m not sure passengers noticed either time.
On our plane you could hear a pin drop. Flash of light & immediate boom. This was before 9/11 & a couple young ladies were talking about bombs after the strike. I had my wife who isn’t a good flyer & my 2 year old daughter. Turned around & told them if they didn’t shut up, I was going to call a stewardess.