The experienced inflation is the area under the spike in that graph. And the area is approximately way larger in the 80's spike. Above 7% for a decade versus 2 for the current spike. And just like interest, that compounds over time.
Now imagine how much worse this would get if we did these calculations with the yellow line data instead, which is essentially the same in the 70-80s but much worse today. (Or maybe also imagine how much worse the past ten years could be five years from now if we got a second inflationary spike like the 70s-80 did, making this a more apples to apples comparison!)
Did prices almost triple in the last ten years?
It doesn't matter whether you count the CPI that double counts interest or not.