@Cindy Evers, Thanks for posting in Q&A.
Based as I know, Windows 365 is a loud PC used to provide a Windows desktop environment to end users. We can choose the windows version when set image type:
Note: Non-Microsoft link, just for the reference.
For the Windows 365 cloud PC, you can use command "winver" to double confirm what version is on it. If it is not windows 10 and you want to change to it, you can try the "Reset" action to reinstall windows. Here is a link for your reference:
Hope it can help.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.