I’m out of town and away from a screen to experiment.
Search for the “AVN-5 Quick Reference Guide” on this forum and refer to pages beginning at 1-10, “Using the Home Screen”, to see if it’s discussion and links help you resolve your inability to set up the Home Screen to your liking.
Thanks for the video @BVoltz. You have the 10.25' Navigation system. The manual above is for the 8" non-Navigation system. Different animal. @Fritz was right, search for "AVN-5 Quick Reference Guide" to get the .pdf for your system.
I’d suggest you go back to your dealer, or a dealer, and ask for assistance from someone willing to help. None of us on this forum are likely to be able to help to your satisfaction from a distance. You are the first person I’ve heard be this dissatisfied. There is probably a fix.
Hopefully someone on here can help. It’s a mighty nice vehicle in so many respects, but the multimedia aspects play a large part in its desirability and their utility and function are paramount in achieving that desirability for you. I’m not familiar with the Hyundai 8” system, but I do know that differences between nav/media controls in my opinion, though advancing in model years, have not always advanced in capabilities even after gaining intimate familiarity with the new system. Sorry you are dealing with this.