I knew someone once who had this, she didn’t know until she got an x-ray as an adult. The doctor called in their colleagues to take a look at the scan because he’d never seen a real-life case before. She had her heart on the right side of her chest, was pretty interesting.
They seem safe enough to pass the EU’s safety standards, which are much higher than the US. Also this blanket “quality issues” argument without specific evidence is terrible. If we’re going off of quality in recent history, American manufacturing is down the toilet in terms of quality - just look at Boeing.