Anecdotally, I've heard people say they almost got into a crash because of lane assist, especially with the white/yellow temporary lines. But that does depend a ton on the car.

I have to agree that if you have to turn, you should be able to turn, lane assist be damned - we're not yet at the level where a car can accurately judge 100% of the road situations. But it's probably a good thing we're moving into a future where crossing lanes without turn signals feels like a virtual bump on the road.

On a Hyundai, there's a very annoying beeping pretty much coinciding with the wheels hitting the lane markings - which IMHO is too little too late, and besides around here most lane markings are made to rumble so it's not like an additional audio signal is needed.

On my ex'es brand new car, that feature got turned off after very few kilometres, and has stayed off ever since.

Mine works like yours, it'll jottle me a bit but if I want the car to go there it goes there, I don't need special efforts to make it happen. It also has the auto-brake thing in case you're about to rear end someone and I've set it to high to see it working but even that I only managed to make it beep and flash but not actually brake yet, looks like it would only do it pretty late. I think most people complaining about this are having an "back in my days" moment tbh, but maybe there are indeed cars out there where the implementation is more invasive.