I've owned GM, Honda, Ford, VW, and Chrysler. I've been very disappointed in all of them.
I bought a 2019 santa fe with the same engine. As these engines are now covered under lifetime warranty. I had 0 problems with the car in the last 2 years, and honestly I am quite amazed with how much of car I got for 34k with 0% financing. I have the highest trim with AWD, which had original MSRP of $39k, so I did get a decent deal.
IMO, hyundai/kia is a great buy, Toyota/Honda used to be a good deal some years ago but right now their cars are overpriced, toyota especially.
Toyota does still retain value quite well. However, carmax offered me $32k for my car, so almost what I paid. This most likely due to the chip shortage so that value would probably be lower normally.
That being said the V6 lambda engines are very nice and considered reliable. They started with the Genesis which was an important flagship vehicle. I have a V6 and have had no issues approaching 100k. But I am the type of person that wants to get 200k out of my vehicles, I have no idea if that will happen. I'd be upset if the car failed before 10 years as well.
There are forums where you can get an idea, especially if you look at previous model years.