Other

com.android.runintest.ddrtest

DDRTest

Risk: Safe
Source: Android itself
What it is: Other

What it is

RAM Stress tester

Can be run from the bootloader

NOTE: I'm not sure it's really from AOSP (seen in TCL Plex phone)

Commands

adb shell pm uninstall --user 0 com.android.runintest.ddrtest

To put it back:

adb shell cmd package install-existing com.android.runintest.ddrtest

Every removal listed here is per-user only: the system image is untouched, and the restore command puts the app back from the copy already on the device. Nothing is downloaded.

This is not the directory. Here we say what a package is in general; what happens on your particular television is on your model's entry, and that one wins. The same package can be dead weight on one set and hold the home screen up on another.