Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32H750x/DBGMCU/APB3FZ1#0x0
DBGMCU APB3 peripheral freeze register
WWDG1 stop in debug
https://github.com/cmsis-svd/cmsis-svd-data