Greetings!
This is Tin, I'm so sorry to hear that your device has been missing for months already. I understand that you would like to locate your device. You may only check your device from this link https://account.microsoft.com/devices, please note that it will only show there if your MS Account is signed in to that device. If your computer hasn't been used for months already or it was already reset, I'm afraid that it won't show on that website anymore.
Note: The Download mmoye is just an app download record, and cannot confirm that your device is still connected to your account.
Thank you,
Tin