I’ve got a 2017 Hyundai Ioniq hybrid - lifetime hybrid battery warranty -
I assume you also have a gas engine to to the heavy lifting long after the battery has faded. Like a Prius. Hybrids weren’t cost effective during the Trump years but as Biden/Harris drive fuel prices into the 7 dollar / gallon range they will be good.
That's only for total battery failure, not reduced charge capacity. It will give you reduced range over 8 years as the health of the battery pack declines. Tesla also gives a similar warranty. I have a Leaf with a ten-year warranty against reduced charge capacity, if it falls below 70 percent then I get total replacement. Hyundai is not much different than other car makers, it only covers total failure and it applies only to original owner.