Problem for me is phones are uncomfortable to use for gaming in so many ways. My hands aren’t even that big, and my thumbs cover a lot of the screen. Then phones get hot when using them a lot. Not to mention staring that long at a mobile screen makes my eyes feel like raisins. Plus it’s really shit posture to sit with your neck bent at a 90° angle looking straight down into your lap. None of these are very enjoyable for a gaming experience.
I won’t even talk about the crazy predatory nature of most phone games being aggressive dopamine hijackers, cause that’s covered in the thread already, but that too.