It's about multitasking. RAM is the upgrade trigger for me. I'm so exhausted by developer introduced bloat in software such that almost every app fully reloads when switching. Devs ruin multitasking every few years until another RAM upgrade.

You're missing the important bit in the GP comment:

> the most important property of compute devices right now

Memory didn't matter when iPhone 12 was released, but these days it determines which local LLMs you can run on device. That's the point of that comment.