A few changes are coming to the Sticky Notes experience to make it more useful and familiar.
It will be added to your Start Menu when you install or update the OneNote app.
Theres also a new pin button that appears when you move a sticky note to its own window.
Finally, Microsoft has added a new Copy Note option to the main menu in each sticky note.
It might save you a few clicks compared to selecting all the contents manually and doing a copy action.
Microsoft hasnt said when, if ever, the older Sticky Notes will be removed from Windows.
Source:Microsoft 365 Blog