That in itself is not going to be a trivial implementation given the size and power constraints.
The current handhelds with 128 bit LPDDR5 are already tight fits spacing wise.
You'd also basically still be doubling the memory portion of the power budget relatively speaking.
I dunno about that
There would be plenty of room for more ram it's all bunched next to the cpu, you could shuffle stuff around and fit in more ram.
here I believe the ram is on the bottom under that thermal pad.