Why do you think that listing on exchanges is worth millions of dollars?
I think that such conditions were possible in 2017, but not now.
Well, maybe the listing is not worth millions today. Projects simply do not have such money to pay such expenses. But still we are talking about hundreds of thousands of dollars.
I dont know where you got these figures from, I think everything is much cheaper and simpler, for example, Binans Exchange made the listing free