I keep having two Icons disappear from Home page--they vary. I can arrange my Home page and a little while later, two will have disappeared. Was that way with Android 8.0 and still that way with Android 9.0. Tried mjultiple restarts, set and then restart, etc. and they still won't stay.
Please disregard. I apologize. I had posted this question several days ago and could not find it anywhere. After posting this time, I finally found it with a very thorough answer with things to do which I will try. Many thanks to SamsungAdam.