Yes I did. I tried doing that and going through the regular settings button as well. I even tried a suggestion I saw on another post to install Good Lock to see if the setting options would somehow show up without success. This 3x4 giant icons grid is annoying to say the least.
If I can't find or get a solution to the issue, I'm going to ditch the Samsung UI and install the Blackberry Launcher, at least I know with certainty in that interface I can change the grid size without issues and have the interface setup the way that works for me.
Shortly after I posted the reply, I did another search and found a solution on AndroidCentral. The post refers to the S10 but the solution still worked.
I went to Settings>Display>Easy Mode and turned off easy mode and just like that the Home Screen Grid options appeared under the Home Screen settings.
All is good in my world now! 🙂