Why is there no show/hide button on my Galaxy S8+?

[Android Central Question]

My Samsung Galaxy S8+ does not have the little dot at the bottom left of the screen that allows me to hide or show the navigation bar. The software is completely up to date, but there is no option in the settings that allows me to turn on that button. Any help would be appreciated.

 

[Centerman66]

Settings / Display / Navigation Bar

 

[Alejandra Escandon]

Mine also doesn't show & my System is up to date