To get that cursor, you actually have to find it on the internet, or create one yourself. Windows doesn't have it included in their cursors.
I searched on the internet a bit on such a cursor as you said, found in the 'Set aside Tabs section', I really didn't find one. What you could try is using
this software to make a cursor yourself. I also made the same thing you wanted, but I don't know why I'm not able to upload it. I guess you can do it.
The next step is to make it your cursor: Head over to Settings > Personalization > Themes > Mouse pointers > Pointers.
Click on Browse option to select your new .cur file and apply changes. You just got a new cursor!
Hope this helps. Comment me if you need help. Best of Luck!