Hello Nicholas Farrington,
Welcome to Microsoft Q&A forum.
It's unfortunate to hear that your laptop has been stolen. The "Find my device" option could give you details of your computer location for City or district level at most. So it is still a large area to search.
Also, how that function works is that when your computer is powered and online. The device will transmit the location periodically to Microsoft Services, which will link it to your Microsoft account. However, it can only work if the computer is both turn on and connected to the internet. So the location you see might just be the last time the computer is online when your account still signed in. So if the thief has already wiped your computer, the tracking could also be lost.
In this case, I'd be more worries about your data and account safety. In this case, I suggest that you should change the password of all emails and account that is on that computer. This will sign them out of the laptop and protect your data.
Thank you for your understanding.