I’ve seen people on FR go through the process of re-thinking their postions on threads about various things. That’s how I know minds have changed on some issues and about some people. Never seen that happen on a Russia/Ukraine thread.
Re-thinking a position is not the same as changing one’s mind. Giving consideration to another point of view is also not necessarily changing one’s mind.
So, with that thought in mind, how do you know that people on FR and elsewhere have not changed their minds on the issue of Ukraine? Like I said, knowledge is power, and opinions are a form of knowledge.