If you go onto your settings and click home screen you will see an option that says home screen grid and app screen grid, click on both of those and it will give you the option to make them smaller by changing how many apps you have on one row
If you go into Goodlock.And select Theme Park.Press on icons.Then press on create new.Then press bottom arrow.Wich displays a slider to resize apps to your specific size.
I am on o2 samsung s 22 ultra my phone just updated to the ONE UI 6 and there is a list of the new features thats come with the update. Nothing at all on my phone has changed at all from the list. New emojis nothing. New camera feature nothing. Suposed to be able to move my clock nothing. So actualy waste if update as everything is the same as before update. Ive been through every setting ive got