I bought my current prius…
I bought my current prius brand new in 2017. It now has 270k miles on it. I drive 120 miles a day and 110 of those are freeway miles. The entire engine, hybrid system, battery, ect... is original parts from the day I bought it EXCEPT the water pump, which was replaced when the car blew a head gasket. It still worked but because it is harder to get to, it was cheaper to just replace it as a preventative measure. The oil filter housing was also replaced because of a minor leak. That was covered under the original warranty.
Outside the single issue above, I have had zero issues with the car. I drive it hard too. I will be driving it until it falls apart, at which point I will get another prius.