On Android 12 and above, modern Facebook ignores Do Not Disturb mode. You will still get "So-and-so is live" vibrations. Facebook Android 23, built for Android 8.0 (Oreo), strictly follows system-level DND rules. Users report sleeping better after downgrading.

Facebook Android v23 proved that – not incremental fixes – is required for performance at scale. By adopting modern Android technologies (Jetpack Compose, Room, Baseline Profiles, HTTP/3) and enforcing a strict offline-first model, the team delivered a faster, lighter, and more reliable experience for billions of users, especially on constrained devices.

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