However, the Snapdragon 665 processor on the A9 2020 is starting to show its age with newer firmware demands. While daily tasks are snappy, I noticed some occasional micro-stutters when switching between heavy apps. The biggest downside for me was battery optimization; the update introduced some background process management that is a bit aggressive, sometimes killing music apps I have running.
Oppo has ended major OS updates for A9 2020. Latest security patch is typically September 2022 (or earlier depending on region). Oppo A9 2020 Firmware