How wiring directly arduino mega to STM32 3.2 inch HD TFT LCD Touch Color Modul

The Chinese are very naughty. (I suppose that the Brits did give them Opium Wars, but we have been pretty nasty to most countries)

Normally Ebay Shops just add the word "Arduino" to an item. No one expects Ebay vendors to be honest.

It looks like the Manufacturer deliberately printed "Arduino" and the official logo. The display is not Arduino compatible in any way. The pins are all 3.3V and on a 32-pin header. No Arduinos have 32-pin headers.

You can buy an adapter like this
which has pinout like

It is your job to compare the pins on your display. Make sure that the LCD_VCC pin#1 on CN2 is 3.3V. The Shield probably has a 3.3V LDO regulator but it is your job to make sure it goes to the right pin.

David.