"Trigger words" vs. "algospeak"

I encountered the passage above while idly scrolling Facebook and was startled to see the word "die" modified with the asterisk.  I was surprised that "die" would be a trigger word for anyone, but I was reluctant to ask the question at the post, not knowing whether perhaps it was part of a site discussing childhood deaths, bereavement etc.

So instead I turned to AI and asked Google Gemini for an explanation.  This was part of the reply:

You learn something every day.