If your Windows 10 is Home edition, unfortunately, no way to stop automatic update.
If your Windows 10 is Pro or Enterprise edition, you could delay feature update by group policy, which is located in:
Computer Configuration > Administrative Templates > Windows Components > Windows Update > Windows Update for Business > Select when Preview Builds and Feature updates are received.
Or use the GUI method here:
How to delay the Windows 10 May 2020 Update without losing quality updates
https://www.windowscentral.com/how-delay-windows-10-may-2020-update-without-losing-quality-updates
Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.
-------------------------------------------------------------------------------------
If the Answer is helpful, please click "Accept Answer" and upvote it.
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.