Google Search my device?

To locate a lost Android device, I installed the "Find my device" app on my smartphone. All settings set correctly.
On the PC, the WEB app, https://www.google.com/...droid/find

When signing up to find the phone, Goggle sends a message to the phone saying: Check your HUAWEI ANE-LX1.
Google has sent a notification to your HUAWEI ANE-LX1. Tap Yes in the notification, then tap 53 on your smartphone to continue. Only then will a map with the cell phone location appear.

It's nonsense, the cell phone is lost.

Or am I doing something wrong. Who has a tip or experience with it?

This is just a login method, you can also enter your password. All you have to do is choose a different registration method. So you don't need your phone.