At first, you need to open the Windows Settings panel ... Following that, you need to toggle the corresponding button to show the Pen menu icon. Next, you can tap or click on this icon to expand ...
Sometimes, for no apparent reason, you can spend a considerable amount of time in trying to disable press-and-hold for right-click function of Wacom Pen for Windows 11/10 tablets and touch devices.
The other new digital pen option for OneNote is Brush Pen ... Members of the Insiders program will need to update their OneNote app to Windows Version 2408 (Build 18011.20000) or later to check ...