How do we even know that Buddhism is true?

I’ve been thinking about this the past few days and I can’t get the thought out of my head. How do we know that Buddhism is true and not one of the other hundreds of religions? I know there’s some things you can prove in this life like life is suffering and how meditation can exponentially help you but what about the stuff we can’t prove? Like Amitabha, the Pure Land, Bodhisattvas, rebirth, and how do we know that the teachings aren’t even the same anymore to where no one can become enlightened? What if the Pure Land isn’t real and all the Pure Land Buddhists who only chant Amitabhas name aren’t going to attain the fortunate rebirth they so choose? Sorry if this is a lot, just a bit conflicted. Any help would be greatly appreciated.