Samsung Keyboard should have a quick toggle to disable learning of what the user types, something like an incognito mode. User will get existing suggestions while typing but whatever typed after enabling incognito mode will not be sent for learning and improving suggestions. This is kind of similar to like what happens when a text field is marked as private or sensitive (password).
This is very useful for privacy where users would like to keep their typing (maybe chats or some private notes) completely private, and not sync anything to account. Microsoft Swift Keyboard has this feature for a while now, and it does the job pretty well when it comes to Incognito mode. It even has features like switching to Incognito mode automatically when user switches to Incognito mode in the browser.
