2.8" TFT LCD on R4 Wifi Issue

https://www.amazon.com/Elegoo-EL-SM-004-Inches-Technical-Arduino/dp/B01EUVJYME

Has a pinout picture and controller information ILI9341.

The pinout is identical to the MCUFriend UNO shields, LCD_D0 on UNO pin 8, LCD_D1 on UNO pin 9.

My fork https://github.com/ZinggJM/Arduino_GFX has two modified examples:
Clock and PDQgraphicstest
that use an include file known_good.h,
which is configured for the databus for this shield, and the controller ILI9341.
So you can use it unmodified with your display.
Download the fork as ZIP-file, and install with Library Manager method Add ZIP-file.
-jz-

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