Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wl/STM32WL5x_CM0P/PWR/CR5#0x0
Power control register 5
Enable Radio End Of Life detector enabled
Enable SMPS Step Down converter SMPS mode enabled.
https://github.com/modm-io/cmsis-svd-stm32