anonymousflipphone try this.
Adb shell pm uninstall -k --user 0 com.lge.voicecommand
adb shell appops set com.android.cts.io.github.virresh.matvt SYSTEM_ALERT_WINDOW allow
adb shell settings put secure accessibility_enabled 1
adb shell settings put secure enabled_accessibility_services com.android.cts.io.github.virresh.matvt/com.android.cts.io.github.virresh.matvt.services.MouseEventService:com.android.cts.flar2.homebutton/a.i
adb shell am startservice com.android.cts.io.github.virresh.matvt/com.android.cts.io.github.virresh.matvt.services.MouseEventService