Jan 21/2023: Google today released the latest update for Pixel Live Wallpapers with version number 2.1.502780767. The latest update fixed the Pixel Live Wallpapers 2.1 issue.
Jan 16/2023: Google has recently released version 2.1 of Pixel Live Wallpapers but according to the latest information the Play Store says the app is no longer compatible with older Pixel phones.
Last Version 2.0 of the Pixel Live Wallpapers brought the Live Bloom collection for the Pixel 6, 6 Pro, 7, and 7 Pro (all other phones were left out, which is par for the course) but the new version seems missing some key changes.
Version 2.1 appeared on a Pixel 4a via 9To5Google, but attempting to “Update” returns a “Couldn’t install” error. In fact, the listing says: “This app isn’t compatible with your device anymore. Contact the developers for more info.” (Meanwhile, 2.1 does not appear to be widely rolled out yet beyond the Pixel 7 series.)
Meanwhile, the 2020 phone will get “Guaranteed Android version updates” until August 2023, with Android 13 QPR2 (set for March) locked in.
