The "Debug" line on the debug screen shows which debug graphs are enabled. The debug pie is enabled with Shift + F3, the performance graph is enabled with Alt + F3, and since 23w32a, the network traffic graph is enabled with Ctrl + F3, but the last one is not mentioned on the debug screen.
How to reproduce:
Open any world.
Press F3.
Look at the bottom left.
What I expected to happen was:
"Debug: Pie [shift]: hidden FPS + TPS [alt]: hidden Ping [ctrl]: hidden"
What actually happened was:
"Debug: Pie [shift]: hidden FPS + TPS [alt]: hidden"
Can confirm.