How do I switch between the stylus's digital text input (displaying standardized digital text) and handwritten script input?

When you write with the stylus, the system automatically converts your handwriting into text. If you want to display your own handwritten script, please follow these steps:
a) Open the Notes app, tap the "+" icon in the lower-right corner to create a new note. By default, it is in digital text input mode (the stylus stroke appears blue during writing). After you finish writing and lift the stylus, the input will be displayed as standardized digital text.

In digital text input mode, the phone can automatically recognize handwritten punctuation marks.

b) To switch to handwriting mode, tap the stylus toggle button in the lower-left corner. In this mode, the stylus stroke appears black, and handwritten script is displayed as shown below.