In my case and many others, they are refusing to replace batteries, and most batteries are out of stock worldwide. They are telling people to buy a new Pixel with a tiny credit. Many haven't got their small perks at all. Google is not compensating as they said they would be Here is my experience where they permanently destroyed my phone and offered no help: https://news.ycombinator.com/item?id=42871613
Here is a recent Hacker News post about the battery update: https://news.ycombinator.com/item?id=42865619
All Pixel 4a factory images have been wiped (except the battery of death): https://developers.google.com/android/images#sunfish
Note: This has not been officially confirmed by Google yet, but with the Pixel 4a battery update fiasco that kills the battery, it may be true and this was not supposed to be leaked.
Everyone please back up your phones!