FP3 : Fairphone Open OS?

[mgfp]

In the “General Fairphone 3 discussion”-thread I found this:

General Fairphone 3 discussion

That article also includes a very interesting paragraph: Out of the box the phone comes with Android 9 preloaded. A post-launch update will make it easy for buyers to wipe Google services off their slate and install the Android Open Source Project instead.

I wonder if this is possibly a replacement for FP Open OS? Another method for the same goal: no separate OS, but simply remove the Google stuff from the default OS?