How to enable swipe typing on Samsung Galaxy S10 keyboard
And you know what? So does the Samsung Keyboard!
But the feature is off by default. Fear not, here's how you activate it:
Go into Settings → General management → Language and input
Now, head into On-screen keyboard → Samsung Keyboard (unless you are using the Samsung Keyboard Neural Beta).
Hidden in here, you will see the Smart Typing sub-menu. Open that and look for Keyboard swipe controls near the bottom.
As you can see, you have three choices. Option 1 means the keyboard will not react at all when you swipe over it. Option 2 allows swipe typing. Option 3 will let you control your text cursor by swiping across the keyboard like it's a mouse pad — kind of like the 3D Touch-activated cursor in iOS.