I have had 16gb ram on my S21 ultra and Samsung never really used it to its full potential.
Also with SSD's almost getting as fast as Ram. I feel the appetite is less so.
The only use case scenario for more ram would be maybe insane computational photography with AI edits and stuff and then again they could just put a separate chip to sort that out.
Also more ram intensive stuff has the possibility of draining more battery power if would presume.
It's a game of balance unlike PC where it's just plugged in the socket.
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