Not necessarily. There's the added complexity of having an additional electric powertrain, but many this enables many hybrids to concurrently remove the transmission that a conventional ICE car would have.

Prii didn't get their reputation for reliability by being unnecessarily complicated. Of course EVs are obviously simpler, but I'm not sure I'd say a Prius is more complicated than many ICE vehicles of today. Twin turbos and 10 speed autos aren't something exotic anymore -- those are available on the base trim of the F150.