There are unofficial builds of LineageOS 18.1/19.1 stripped of Powkiddy’s bloatware, or "Rooted Stock" ROMs.
While the A20 is restricted to its Android base, other Powkiddy devices often utilize the Miyoo Custom Firmware or ArkOS . For the A20, "modding" usually refers to: powkiddy a20 custom firmware
: Some users find DIG easier to set up for retro collections, though compatibility can vary with the A20’s hardware buttons. Step 3: Optimization & Emulator Setup There are unofficial builds of LineageOS 18
This is a DAC switch issue.