Apple pencil On iPhone

I used “cut & paste” from apple support page explaining “Scribble “

https://support.apple.com/en-us/HT208459

even in numbers help, there are references for using the Apple Pencil on your iPhone. Has anybody figured this out

“…Add a drawing

You can draw in a document with Apple Pencil (on supported devices), or with your finger.

1. To draw with Apple Pencil, tap your Pencil on the page. To use your finger, or if you've turned on Select and Scroll, tap the Insert button , tap the Media button , then tap Drawing.
2. Tap one of the four drawing tools at the bottom of the screen: the pen, pencil, crayon, or the fill tool.
3. 
4. To draw with a different stroke size and opacity, tap one of the drawing tools twice, then tap a new stroke size. Or drag the slider to adjust the opacity.
5. You can draw with a different color:

• • For iPHONE, tap the colored circle, then choose a preset color at the bottom of the Colors screen. Or use the controls to mix your own colors, then tap the Add button  to save the color as a favorite.
  • For iPad OS 14, tap a preset color or tap the color wheel to choose a custom color. Use the controls to mix your own color, then tap the Add button  to save the color as a favorite. To remove a favorite, touch and hold its color dot, then tap Delete. “