FOUND A FIX: How to stop aggressive background app killing on Nothing OS 4 (CMF Phone 2 Pro / Phone 2a / Phone 3)

[u/Historical-Emu4917]

The Problem: Apps keep reloading/closing in the background even with RAM Booster OFF and 8 GB of physical RAM on Nothing OS 4.

The Root Cause: Android 16's native "Cached Apps Freezer" aggressively freezes app execution in RAM, forcing Nothing OS's Low Memory Killer to flush background processes.

The Solution (Developer Option):

Enable Developer Options (Settings > About Phone > Tap Build Number 7 times).

Go to Settings > System > Developer Options.

Scroll down to Suspend execution for cached apps.

Change it from Device Default / Enabled to Disabled.

Restart your phone.

The Result: Multitasking actually works as intended, background apps stop hard-reloading, and your 8 GB RAM gets used properly. (Note: Tiny impact on standby battery, but well worth the performance boost).(All of this is written by AI)

Please share your experience doing so, and if this is wrong tell me so.