[Samsung Galaxy S7 Edge Themes, Apps, and Mods] galaxyYtester:
Corgi Locker: https://play.google.com/store/apps/details?id=com.swipe.android&hl=en

Floatify: https://play.google.com/store/apps/details?id=com.jamworks.floatify&hl=en

I found a way to make your lockscreen look completely like stock Android with fingerprint unlock, without compromising your device security, using apps called "Corgi for Feedly News Magazine" and "Floatify". The Corgi locker can be a lock screen that shows news of your interests, or a completely stock looking lock screen, if you choose to turn off the news feature of it. Floatify is an app that can show customized notifications on your stock lockscreen (and small toast notifications that appear from the top of your screen), like Nougat themed ones even when you are running an older Android version

Floatify works on a stock lockscreen only, but in this case, if you set Corgi Locker to fingerprint security, it only creates an overlay of the AOSP looking lockscreen over your real lockscreen. Your real lock screen is still below, and your device is having the security of a real system-level fingerprint lock while having a customized lock screen, and it allows Floatify to give you completely stock Nougat themed lock screen notifications on any Android version without root

Screenshot:

Guide:

1. Download both apps, Corgi Locker and Floatify

2. In Corgi Locker, go to settings, and disable "Hot News Widget", also you can choose the wallpaper as "Home wallpaper"

3. In Corgi settings, change security to "fingerprint" if it isn't already, and if you aren't already using a system-level fingerprint unlock, it will prompt you to enable real system fingerprint unlock method (do it)

4. Open Floatify, and go along the setup process, when it has 2 tick boxes for notifications and lock screen, if you want to, you can only choose to keep lock screen enabled. This way you won't change anything else, you won't have boxes appearing on top of your screen when receiving notifications

5. Once you have went through the setup process, you should be in a tile menu with 8 different colored tiles. Here, head over to "Style", and tap "Themes", and select "Android N", and disable "Shadow" at the bottom

6. Go back to the tile menu, and tap "Heads-up", then tap "Position", then under "Position on lock screen", tap "Position" and change it to "Center". Now drag the "Position Offset (Y)" slider to 7%

7. Setup is done, check if your lockscreen works :good:

I'm in no way affiliated by Corgi Locker (or Floatify), it's just the only app I've ever found that looks completely stock and works as an overlay to the real secure lockscreen, and thus completely secures your phone from stealing (people can't simply boot to safe mode and delete the custom locker). If you have any problems, leave a reply and I'll help :good:

Edit: Tip: By changing the window animation scale to 0x in developer settings, you can get rid of the iOS-like zooming animation of icons and other things when unlocking your display. And if you are using Nova Launcher, you can set wallpaper scroll option in settings to "force" to get rid of the wallpaper zooming when unlocking your phone, because with the force setting, the wallpaper is rendered by a Nova API, and not by the phone system that will add a zooming effect to it (if you have these zooming animations, they only exist on GraceUX)