I'd seen it around but assumed it was an effect of how you prompt it or something. And figured people were overexaggerating a bit when they complained about it.
Nope, I just tried it out myself recently and... wow. In the very first conversation it started glazing me about being right to push back, having the crucial insight, and something something the load-bearing-whatever.
So yeah, I'm on the same page as you, how on earth have they not fixed it yet? Do people like it? I added a system prompt to tell it to stop doing it and it's helped a decent bit already. ChatGPT/Codex has some annoying bits of prose but it never did this, so it can't be that complicated to get rid of.