This feature is currently not available when using Microsoft OneNote on iPhone. To switch back to text mode at any time, tap Text Mode on the far left of the Draw tab, and then tap the screen to display the on-screen keyboard. Users can now draw, write notes, and mark up documents using their fingers, rather than having to use an input device like an Apple Pencil or another supported stylus. My solution is to use specialized apps for special jobs. OneNote for iOS has a new update that brings support for inking with fingers as well as the ability to insert perfect shapes into notes. If and when they ever switch to provide better support for device segments nobody knows. I think they will continue to add features for all users. On the Draw tab, tap the pen, color, and thickness you want, and then use your finger or stylus to draw on the page. In general EN is not supporting special devices like the iPad/Pencil combination very good. Stylus orientation helps OneNote ignore any input your palm may unintentionally create as you write with the stylus. To enable drawing or handwriting notes with a stylus, such as a Microsoft Surface Pen or Apple Pencil, tap Stylus Orientation, and then select how you typically hold a stylus to draw.

If this option is turned off, moving your finger across the screen will pan content on the current page in or out of view instead of drawing on the screen. Turn on the Draw with Touch option to enable drawing with your finger.

On the Draw tab, at the far right of the ribbon, tap the Drawing Mode icon. To get started, first select your preferred drawing mode. When you use Microsoft OneNote on your iPad, you can use your finger or a compatible stylus to handwrite or draw notes. Select a drawing mode in Microsoft OneNote

Onenote apple pencil support