One of the best features of my Samsung device is Bixby Routines, it's so under-rated generally but its quite powerful. It gives the power to customize and make own Routines which gives much control and automation over one's phone.
Bixby Routines
My custom made Bixby Routines
The best part about it is user can create their own tasks based on the concept of If and Then. Although this feature is right now limited to just flagships, I would like it to be pushed to other phones as well.
In my case I use, it for Saving my battery when my phone detects I am sleeping, also when I turn on specific app such as YouTube and Netflix, it auto rotates the screen, preventing me from doing it manually every now and then. Other thing I have setup is to Start playing my favourite Spotify playlist, once Galaxy Buds is connected and many more such custom Routines.
It's the best feature of my Samsung device I like. If you haven't given it a try. Do check it out.
