Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB06/RADIO/CR0_DIG_ENG#0x0
CR0_DIG_ENG register
Set the gain of the clock recovery loop before Access Address detection to the value
https://github.com/modm-io/cmsis-svd-stm32