I was just wondering if the video stabilization option in the camera settings is the same as optical image stabilization? I was under the impression that OIS was an always on feature.
In the camera tap the settings cog icon, tap the three dot overflow menu button, tap recording mode - there you will find slow, fast and smooth motion
Tap the same settings cog icon, tap the wand icon - there you will find the filters
You running your phone in Easy Mode? Go into phone settings, tap Easy Mode and then select Standard Mode and then done to save and exit. You will only have basic camera options in Easy Mode.