@Mindy D
If you are including apps inside of folders, yes you can have more than thirty. And of course you can have more pages of apps. I hope I am understanding the question.
For example.
If you are talking only on first page of the homescreen, I have 24 squares plus 4 widgets.
7 of these squares are folders with many apps inside. 6 are apps in the dock at bottom. There is also a square on the bottom right that is access to APP LIBRARY. Also 3 recently used apps next to that. You don’t have to have the widgets. In settings, I have chosen to use large app icons. HTH