I suspect the vast majority of chips made today are made at the 12nm process node or coarser, because I know of some surprising examples. Smaller process nodes are critical to the highest-performance digital chips, but a lot of chips aren't those.
I, personally, am not doing much with my phone i wasn't doing 10 years ago, which about lines up with a 16nm process. I think the camera is the only thing I'd really notice.
I don't really use much aside from apple music, which was buggy but was released almost exactly 10 years ago, and apple photos, which was already a thing. Google was already circling the drain, so I suppose that's a good point.
5G wasn't really that necessary, although I know it's critical as a broadband replacement for many people.