From what I’ve experienced, this problem happens when you replace the screen with no reprogramming or IC swap. On iPhones older than the iPhone 11, you can reprogram the display however on the new ones, you need to swap the display IC. You said though that it was swapped which is a bit odd. You seemed to do all the steps required to regain those features. I suggest that you try getting a reprogramming tool and try that. If that doesn’t work, maybe reball the screen IC.
I hope that helps!