Whether to indicate, not indicate, brake lights, good habit, bad habit, competence questioned, it's all been uttered over 3 pages. Pushing back onto topic, the OP's opening post stated their dislike for the Lane Assist feature and asked how many others felt the same. The responses are there. Some supportive, others clearly not, some getting heated and some drifting off topic - usual stuff. No minds will be changed, individuals will stick with their opinion, that's how it works.
Whether it means embracing the safety technology in these vehicles, or choosing to turn it off and avoid being annoyed by it is up to the individual. I have no interest in trying to convince others of my opinion, I only exercise the right to express it respectfully, hopefully we can all do similar. I'll continue with what makes me and my family feel safer in the car and having a friend who was actively saved from potential disaster by Lane Assist, I won't be wavering.
As Briskoda has a global audience it's worth remembering that not all UK road rules and laws are shared elsewhere, obviously, so some 'give' in responses on various specifics may help to project greater tolerance. Driving conditions and climates also vary considerably between regions where rules and practices may be borne from a different context to those that may apply in the UK.