Hi. I'm David, and I'm happy to help you.
If you're syncing your PC settings with your Microsoft account, that may help qualify your device for the Extended Security Updates (ESU) program at no extra cost. However, please note that syncing doesn't guarantee immediate access. Microsoft is gradually rolling out the ESU registration option, so it might take some time before it appears on your device.
There are also other ways to enroll in ESU, like using Microsoft Rewards points or paying a one-time fee. You can find more details in the link below under "Windows 10 Extended Security Updates (ESU)":
Feel free to ask back any questions.