Later I came into contact with the more popular MIPI displays. We newly used lontium's LT6911C chip. It has 2 MIPI output ports and can drive 2 displays at the same time and make them have the same display content or split one left and right/up and down. Display interface, this solution is very good.
I designed a PCB so that it outputs 2 channels at the same time and can connect
7.84" 400x1280 portrait screen,
8.8" 480x1920 vertical screen
11.26" 440x1920 vertical screen
11.88" 320x1480 vertical screen
Combining the 2 channels can also connect to a 10.1" 2560x1600 display.