I genuinely am enjoying your comments, it's a super interesting topic and you have good points.

Just because I’d always make the same choice under the same conditions, doesn’t mean I didn’t make a choice.

This might be another point of us misunderstanding each other. I would argue that it's not that you always would make the same choice. I'd say that you couldn't ever make a different choice. In a vacuum, I think it looks like the same outcome, but I think it's subtly different if you look at it more generally, like a system of choices/interactions.

I guess that is what I mean with “pure mind”. There is an unease there

I know what you mean, it made me very uncomfortable when I first learned about this point of view. But some eastern cultures/philosophies don't have the same individualistic/"liberal as in libertarianism" mindset when it comes to personal choices and outcomes, so I imagine that unease is partially due to our cultural upbringing.

What else is free will but a conscious decision based on thinking and inputs, however that works?

I think a lot of what people experience as free will is just rationalization after the fact based on past experiences and internal belief/value systems. Similar to how split-brained people don't just invent provably false stories explaining why they did something, they believe the false stories that their brain invented after they had already performed the actions.

On a real world, practical level, I think accepting this doesn't really change interactions on a personal level, but more shifts the macro/societal level of cause and effect. Maybe instead of expecting kids to just choose to apply themselves better at school, we focus more on methods that improve outcomes, as overly basic example.

I’d be curious what you would call “the phenomenon previously known as free will”?

I haven't given it any thought, and I'm not sure it matters. What would you call "the phenomenon previously known as soul/thetan/djinn"? I don't believe the phenomenon exists, I don't think I'd need a name for that. If we're being super semantic I guess "agency" somewhat works.

And what conclusions would you draw if free will doesn’t exist, what would be the impact on ethics, law and sociology? Does it all topple like a jenga tower?

I don't think it means we stop penalties for crimes, if that's what you mean. I think society is a system, and the existence and application of penalties on unwanted/harmful behavior along with rewards for wanted/beneficial behavior shift the balance of actions and behaviors of the system on a whole for the better, as individual systems (not just people, but families, peer groups, etc) work to maximize outcomes for themselves or their value systems.

Does none of it mean anything?

Plenty of philosophies think we don't have free will, and none of them have advocated for or turned into suicide cults, so don't let this turn you off from the thought. I think we experience what we experience, and free will doesn't cheapen that. Enjoying and valuing what we have and what we experience for what it is instead of for what effort you went through to earn it is already a part of many people's value systems, so I don't believe it actually takes a large personal shift for most people.