Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB07/RADIO/AGC0_DIG_ENG#0x0
AGC0_DIG_ENG register
High AGC threshold
Enable AGC
https://github.com/modm-io/cmsis-svd-stm32