https://www.epi.org/publication/charting-wage-stagnation/
Weirdly, most graphs start getting off in the 1970s when the US left the gold standard. This is to be expected due to the Cantillon Effect.
>Wages don’t seem to have raised at the same rate at all.
>https://www.epi.org/publication/charting-wage-stagnation/
Figure 1 from that link is compares actual income with "projected assuming no growth in inequality"... whatever that means, not inflation.
Figure 2 compares hourly compensation with productivity, not inflation
and on and on...
Real wages (ie. inflation adjusted) has gone up, albeit slowly[1]. Even your link suggests this. "Stagnation" implies staying in the same place, not falling behind.
Sometimes I wonder how people have come to accept this line of thinking as anything but malicious.
As to your second point, yes. PP is more important, so let's use that. I'm sure the picture will look a whole lot better... /s