_jis_Do you mean the function that temporary turns the display when a notification arrives and when the display is turned on it looks different compared to a regular lock screen? I use a non-English locale and didn't get the feature you're talking about first time.
In my opinion AOD and Lift to check are not the same.
Sure, but I mentioned Lift to check just for completeness of that Standby screen options.
You should compare AOD and Ambient Display, not AOD and Lift to check.
Ambient Display is like AOD, but with display timeout. My point was that some users ask for features and don't know already built-in similar features.