lineageos – "find my device" works with OpenGApps?

According to the instructions posted here, I am already configured and good, but android.com/find says that I have NO device configured.

I'm using Lineage OS (8.1) on an Xperia SP on which openGApps is installed (I can not remember the version very well, but probably microphone or mini).

Is the find my device functionality provided in openGApps?