Apparently there is another change in the unlimited photo storage policy.
"Current Pixel Owners Will Get to Keep Unlimited Storage in Google Photos After June. "
https://gizmodo.com/current-pixel-owners-will-get-to-keep-unlimited-storage-1846476622
"Current Pixel Owners Will Get to Keep Unlimited Storage in Google Photos After June. "
https://gizmodo.com/current-pixel-owners-will-get-to-keep-unlimited-storage-1846476622