In UM2354 Rev 1 the documentation says I2C1_SDA is PF15 and I2C1_SCL is PD12 on page 13, 15, 21, 24, and 31 but on page 25 it says I2C1_SDA is PF14 and I2C1_SCL is PF0.
Page 31 says PF0 is GPIO24/SDMMC3_D0 and on page 28 and 34 it says PF14 is ARDUINO_A2_ADC2_IN6.