To me judgemental is not about acknowledging facts. It’s about judging people for doing it. So for example someone isn’t tznius that’s a fact. But you can chose to think they are trying hard and are on their way up or think they are bad.
However when people complain about others being judgemental I don’t think this is the real issue MOST OF THE TIME. I think the issue is that people don’t want to keep halachah and when they see people who are they feel judged and instead want to be justified in their behavior by being around others who do what they do.
If I walk I to a shul and I’m the only guy with a blue shirt I may feel weird and judged. But the problem isn’t the people there it’s me. Now if I don’t want to be part of such a place then I could go somewhere else.