Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wba5/STM32WBA50/GPIOH/GPIOH_IDR#0x0
GPIO port H input data register
Port H input data I/O pin 3 This bit is read-only. It contain the input value of the corresponding I/O port. Access can be protected by GPIOH SEC3.
https://github.com/modm-io/cmsis-svd-stm32