Kriscruiz Said:
"Why can’t I underscan on my Mac after the update to Catalina ?: I did that before I even posted this bro lol. How else would I know about under scanning without being in the display settings ?"
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Report this to Apple:
If nothing works, and seems to be non-user-friendly, then provide Apple Support some feedback on this. They may not get back to you directly, but the more feedback they receive on this, the more likely things with change in future updates and macOSs to come.
Where to Report This:
So, to do so, use the Apple Feedback Forums. Let them know how you have troubleshot this thus far, and why this needs to be fixed.
- Go Here: Feedback - macOS - Apple
- Select: "Feature Request" for the "Feedback Type"
- Select: "User Interface" for the "Feedback Area"
- Proceed from there as necessary.