Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wb0/STM32WB05/RADIO_REG_REG/CBIAS0_ANA_ENG#0x0
CBIAS0_ANA_ENG register
overloaded value for cbias current trimming (when CBIAS0_TRIM_TST_SEL = 1)
https://github.com/modm-io/cmsis-svd-stm32