They have fallen off, but not by nearly as much as the node names indicate. TSMC has been "cheating" with their node designations for years (c.f. 3nm is not re

They have fallen off, but not by nearly as much as the node names indicate. TSMC has been "cheating" with their node designations for years (c.f. 3nm is not remotely a (5/3)^2==2.8x increase in density vs. 5nm, it's more like 30-50% denser), where Intel stuck with the notionally numeric scales for longer. But Intel has given up now too, the "7nm" line in that chart is actually showing the process they're marketing as "Intel 4" (denoting that it sits roughly where a "4nm" process would vs. their competitors).