Hi William,
Welcome to Microsoft Community.
I'm Hahn and I'm here to help you with your concern.
I'm sorry to hear that you're having trouble with the fingerprint recognition feature on your Surface Laptop Go 2. It's possible that the model you purchased does not have this feature, as not all models of the Surface Laptop Go 2 come with a fingerprint reader.
Select Surface Laptop Go 2 models have Fingerprint Power Button with One Touch sign-in through Windows Hello (Surface Laptop Go 2 i5/4GB/128GB does not include Fingerprint Power Button). Surface Laptop Go 2 features - Microsoft Support
I hope this helps. If there is anything not clear, please do not hesitate to let me know.
Your Sincerely
Hahn. W - MSFT | Microsoft Community Support Specialist