Go to the home page where you find all available widgets and apps
Select a widget or app from the list
In this case, we select the widget "count down timer"
Gallary of apps and widgets
Scroll down to customizing area
Make your changes on your widget
Once you are happy with the settings you just have to press the "create widget" button and the widget will be created for you.
Make your changes
Depending on your activated plan, you may not be able to create a widget or app. In this case, you will see a corresponding error message.
After clicking on the "create widget" button you will see a small video "how to embed widget" or you will be redirected to the account page.
New created widget you will see in this list
If you are redirected to the account page you will need to copy the link. Just click on the button after the embed link.
Embed link with copy button
Click on the copy button
Go to notion and past (STR + V) or right mouse click and select from the menu list past
Notion will ask how you want the link embedded on the page. Just select "create embed"
Here is the small video to embed widgets or apps:
How to embed widget or app in notion document