I'm sure you have read that from multiple sources. But I'd LOVE to know you in person and bet real dollars. Let's bet $10,000 on any of the IPCC estimates from the past 25 years and see if those old predictions overstated the problem. I'm sure you've been TOLD that, but it isn't true. The writers of the IPCC reports are aware of the political danger of overshooting, and they intentionally understate the severity of the problems.
It chaps endlessly that thousands of climate researchers spend decades of their live researching the problem, often going to inhospitable places for months at a time to collect data. Papers are written, conferences are held, and conservative summaries produced. Yet some dingleberry paid for by the Koch brothers (having done no research and having written no papers) will say, "Nuh uh, their predictions are wrong again, they are being paid by Soros" or some other BS, and a large portion of the pubic believes them over the tens of thousands of man-years of research.
EDIT: to make this more substantive, potholer54 is a youtuber who mostly debunks climate change denier claims. Why should you listen to him? In his own words, "Don't, you can do it yourself by reading primary sources." Unlike people like Anthony Watt (popular and influential climate denier) who spout claims and provide no sources, potholer provides links to all of his sources. He is a sober person, not a bomb-thrower. Not that it matters, but he has a degree in geology and has spent his life as a science reporter. He makes no money off his channel and spends the time researching because climate change denial is a severe problem.
Whoever can invest the most into constant blatant propaganda is the one whose message sticks. And the fossil fuel lobby's been doing it since the 60s while being funded by a large share of all of our paychecks.
