Hello Nicole, how are you?
Welcome to the Microsoft Community!
My name is Paloma B., I'm an independent advisor, I'm here to help you in the best possible way.
I understand that you have questions about updating Windows.
Yes, it is possible to update directly to version 21H1.
But in this case it needs to be done through the MS update tool.
You must go to the website below, download the tool and run it.
That way it will update your Windows directly to the latest 21H1 version available.
https://go.microsoft.com/fwlink/?LinkID=799445
I await news.
If these procedures helped you in any way, please click on "I solved my problem" and also mark as an answer, so you can help others users.
We will always be available for whatever you need!