As a reminder, the PlayStation Portal, or Project Q, is (according to leaks) based on Android. It doesn't run the games itself, it merely streams them from your PS5 and your handheld then serves as a controller with its own display.
I'm wondering why anyone would prefer that over simply using a regular Android phone with a good controller and the PS Remote Play app?
Let's not forget that this piece of e-waste doesn't even have Bluetooth support and you have to buy a proprietary set of headphones or earbuds that cost as much as the piece e-waste.