Pixel 4 not getting unlimited photo backup to Google Photos at full resolution

The Google Pixel 4.
The Google Pixel 4.
One key benefit of using a Pixel phone is the unlimited photo backup to Google Photos at full resolution. However, this benefit is not extended to the latest Pixel 4 phones.
Google has confirmed directly to The Verge that the Pixel 4 is eligible for the same storage option as any other phone, which is unlimited backup at "high quality". Google wants Pixel 4 users to subscribe to its Google One service that offers 100GB of storage.
Pixel 2 owners can enjoy free unlimited full-resolution backup through 2020 while Pixel 3 owners can enjoy till end Jan 2022. Pixel 3a comes with unlimited Google Photos storage at high quality. 
Source: Google via The Verge