It used to be fine, I’ve never changed the settings. Sometimes it’s ok but a lot of the time if I’m halfway through typing and I have a suggested word pop up above the keyboard rather then the predicted word I’ve clicked on being put in to replace what I’ve typed it adds it to what I’ve already typed.
So if I’m typing shoulder and I get as far as sho and then click on the word shoulder in the suggested words I end up with shoshoulder
It seems worse on Facebook.