With every version of Android it seems to be harder and harder to get real time notifications anywhere near real time.

Twitch notifications, Signal, WhatsApp, I often get these ten to thirty minutes too late.

I’ve excluded them from battery optimisation but that doesn’t seem to do anything. And I can’t find anything else.

I don’t care about battery usage. I’m always near a charger.

Android 13 on a Fairphone 3.

Edit: I’ve disabled DOZE according to https://stackoverflow.com/questions/40204605/android-completely-disabling-deviceidle-doze-in-android-m Hopefully that helps.