TFT LCD model: MPI3501 3.5inch RPi Display
Board: STM32L432KC
Arduino IDE 1.8.13, Arduino Core STM32 v2.0.0
TFT_eSPI 2.3.70
Windows 10

RPi LCD pin              Nucleo STM32L432
-----------              ----------------
2                        Vin
6                        Gnd
18 RS/DC                 PA0
            19 MOSI      PB5
22 RST      21 MISO      PA1  PB4
24 CS0(LCD) 23 SCK       PA11 PB3
26 CS1(TS)               PB0

User_Setup.h
------------
//#define STM32
#define RPI_DISPLAY_TYPE // 20MHz maximum SPI
#define RPI_ILI9486_DRIVER // 20MHz maximum SPI
#define TFT_SPI_PORT 1 // SPI port 1 maximum clock rate is 55MHz
#define TFT_MOSI PB5
#define TFT_MISO PB4
#define TFT_SCLK PB3
#define TFT_CS   PA11 // Nucleo-F767ZI equivalent of D5
#define TFT_DC   PA0  // Nucleo-F767ZI equivalent of D6
#define TFT_RST  PA1 // Nucleo-F767ZI equivalent of D7
#define TOUCH_CS PB0 // Chip select pin (T_CS) of touch screen
#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
#define SMOOTH_FONT
#define SPI_READ_FREQUENCY  20000000

Arduino IDE Tools -> Board
--------------------------
Board: Nucleo-32
Board part number: Nucleo L432KC
USART support: Enabled(generic Serial)
USB support: CDC(generic Serial supersede USART)
USB speed: Low/full speed
Optimize: smallest (-Os default)
C runtime library: Newlib Nano(default)
Upload method: Mass storage

TFT_graphicstest_one_lib
------------------------
TFT_eSPI library test! (no #define STM32 - works ok)
Benchmark                Time (microseconds)
Screen fill              4242221 
Text                     155574  
Lines                    2049246 
Horiz/Vert Lines         354961  
Rectangles (outline)     198774  
Rectangles (filled)      10178974
Circles (filled)         1259090 
Circles (outline)        711816  
Triangles (outline)      429315  
Triangles (filled)       3484931 
Rounded rects (outline)  377747  
Rounded rects (filled)   10398664
Done!

TFT_eSPI library test! (#define STM32 - flickering white screen)
Benchmark                Time (microseconds)
Screen fill              623490
Text                     112541
Lines                    1444095
Horiz/Vert Lines         68171
Rectangles (outline)     42612
Rectangles (filled)      1510816
Circles (filled)         562834
Circles (outline)        518628
Triangles (outline)      292286
Triangles (filled)       789089
Rounded rects (outline)  191213
Rounded rects (filled)   1662386
Done!