On my spouse's 2019 model, I could disable that alert in the menus. Even after I disabled every alert in the menus, the car still emits an urgent tone with an unknown meaning.
The thing is that I like the safety feature itself. It’s just asinine that it distracts me to tell me that for the next 1 second it’s not keeping me safe. Also the fact that there is absolutely nothing it changes in my driving behavior when it is off. I’m still the one driving.
I just drive with lane keeping enabled. The car will keep itself in the lane without audibly alerting me. If I really wanted to depart the lane, e.g. to avoid debris or to give a cyclist more space, the blinker or a slight nudge of the steering wheel will override it.