Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wl3/STM32WL33/MR_SUBG/SYNTH2_ANA_ENG#0x0
SYNTH2_ANA_ENG register
Select the level of max VCO amplitude in amplitude level control loop.
Select the PLL lock detector window selection:
https://github.com/modm-io/cmsis-svd-stm32