You surprise me, never had an issue and I'm on my 3rd all through different dealers. Worst dealership was 💩TRON followed by another frog company then a well known German group of companies. Good luck to the OP on keeping the OH happy and finding what they want.
We had two, mk4 and 5 Spurt ages.
Neither were tragically bad, just lots of niggles. The 2nd got an advisory for play in suspension bushes at sub 20k miles. Kia wouldn't authorise the repair as they recovered knackered hushes at 18 odd thousand miles is fair wear and tear. The dealers were always keen as they get paid for doing warranty work, but it was quite a regular occurrence for the importer to kibosh and repairs after 3 years. In our personal experience the 7 year warranty isn't worth the paper it's written upon.
I could have lived with it but Kia were by then as expensive as anyone else's products so it's not like I was even getting the benefit of a lower asking price.
To be fair, the last 8 or 10 years things have taken a dive all round with pretty much all manufacturers. Component, drivetrain and platform sharing means one problem does not just affect a single model but now is liable to afflict multiple brands and models (eg, Stellantis, VW-Ford, Renault-Nissan Alliance, etc), and the pursuit of ever cleaner emissions brings stuff like Adblue, pressed camshafts, wet belts, high output turbo small bore motors (Ford, VW, Nissan, Hundai-Kia and a host of others), and so on.
Upshot is buyers of an internal combustion powered vehicles today actually have a hard time choosing something that doesn't have a potentially serious fault designed in to the vehicle.