Historically most of these "Whether it’s a battery EV, plug-in hybrid, hybrid, or internal combustion engine vehicle―whatever the power source" platforms have been utter ICE-first EV-distant-fourth-priority shit shows. Most of the exceptions are rather expensive.
In general, they've been pretty uninspired. That said, the Hyundai Kona/Kia Niro cousins were pretty much just "replace the engine with a motor and bolt the battery to the bottom" and those were perfectly reasonable cars for the vast majority of actual needs.
True, and it's especially interesting since Toyota I think offers some vehicles only as hybrids/PHEVs. For example, the Camry and RAV4 fall into this category, I think. It's deceptive because it makes it look like the RAV4 PHEV isn't that much more than the base model. But since the base model is already more expensive than an ICE would have been because it's a hybrid, this isn't the true differential between ICE and PHEV.