But apps can still work around these restrictions (even on iOS; for eg the facebook app was caught "accidentally" playing silent audio.) Even if that was truly a bug, the point remains that it's better to use the website unless you want something specific (offline access, push notifications, etc...)
Well, to be fair, you can disable notifications from apps since android 4.0 (which is a long time back)
And Android 6.0 and up should automatically disable background running apps (https://developer.android.com/training/monitoring-device-sta...) unless there is a good reason for them to be running
But apps can still work around these restrictions (even on iOS; for eg the facebook app was caught "accidentally" playing silent audio.) Even if that was truly a bug, the point remains that it's better to use the website unless you want something specific (offline access, push notifications, etc...)