1) AOD was working fine for "Always show AOD", I unlocked the phone and just went into AODNotify to view the settings and didn't change anything. The phone idled and the AOD showed up but there was nothing on the screen except for the biometric fingerprint. I unlocked the phone and reviewed AODNotify's settings. I went into Samsung's native settings, AOD toggle was OFF. I toggled it ON and it immediately reverted to OFF again.
2) I use Samsung's native messenger app. The notification preview for a text comes in and the preview message shows up correctly. But there is no app icon on the bottom row for it. I don't know if there is a correlation but that missing icon usually happens when there are 2 other notifications from other apps already present.
I actually don't see an app icon for Samsung messenger on the notification preview at all.