Not totally true. I want to point out that there's a huge gap between what Buddha saw and taught and what is said by the teachings in modern Buddhism.
Gautama Buddha went to people basically every single day for 45 years and tried to awaken them. He absolutely did not teach people that it's possible to eliminate suffering while alive, and he never taught that meditation is a way to enlightenment. Instead, if we make a gist of the content of his life work teaching we can see that he taught two things: the theory of transmigration (reincarnation), and the law of cause and effect. He taught these things to make people realize how the world works, and what he taught is still totally accurate even by the view of today's world. There were ways in his teaching from the problems people have to the solutions they want to get. But those ways are absent from modern Buddhism.
So we can conclude that while things in the world exist through change (reincarnation), there is another constant meaning in the world, and that is "truth", or law, of how the world works – the law of cause and effect.
When we see and understand the world of the truth then what we find is permanent and never changes. All the answers are fixed. Only questions change.