I got an email from Google advising me that an upcoming software update will reduce the battery life of my Pixel 4A. Following the links indicates the only possible remedies are a rebate, a price break on a newer model Pixel, or to mail in my Pixel for a battery replacement. There is no option to not accept the update.
Also? There's no real explanation of *why*. They do explain some of the *how*, which seemingly casts the blame on the battery itself (see also 'replace the battery').
[contd]