BIGTREETECH SKR 3 EZ New Silent Mainboard Motherboard 3D Printer Accessories Support Marlin &Klipper Firmware Compatible with EZ2209, TMC2209, TMC2208, 8825 Driver for 3D Printer DIY Control Board

Q: Will this work with the bigtreetech pi tft43 tft lcd display (https://www.amazon.com/dp/b09791zg1b)?

Not directly. The pi tft43 needs to connect to a Raspberry Pi via dsi cable. And the Raspberry Pi needs to connect to the BTT Manta mainboard via usb cable for touch screen functionality and more. If you want a display to work directly with the BTT Manta mainboard, Look at BIGTREETECH Direct TFT50 V3.0.1 5.0.