So dropped phone face down on our tile floor. The screen didn’t crack but I now have a colored line on my screen. Will a screen repair that is offered by my insurance fix this or is it a deeper problem?
Won't be able to say for certain until a shop looks at it. When you drop the iPhone, the display connector on the logic board can become pseudo soldered.
That is definitely display damage. A connector issue would have more uniform manifestation of lines/distortion/power. If this is an LCD display, I would guess pressure damage from impact. The Taptic Engine is located under location of damage.