Samsung phones have the feature to have a custom scrolling text on a locked screen where I always put "If found please call: [phone number]"
That way if I loose my phone and an honest person finds it, there is a way of getting it back. This is a much needed feature for the Galaxy Watches.
Please consider this request.
It doesn't scroll, but Samsung has had the option to have contact information on the locked screen for several years now. I only have my first name listed (in case I misplace my phone at work), but you can enter a lot more contact info. I've attached photos on how to do this in 4 steps.