Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32u5/STM32U535/ADC4/ADC_CFGR2#0x0
ADC configuration register 2
OVSE
OVSR
OVSS
TOVS
LFTRIG
https://github.com/modm-io/cmsis-svd-stm32