sometimes I think if you look at the amount of token supply in such a large amount that trillions and trillions after the project runs several months or years, the token will be burned, what for if you make tokens with a large supply, but will be burned, ...?

They'll only burn it to attract investors because it will apply the supply and demand, now if the project will become successful a lesser supply would mean a greater price it will become, so investors will try to investor when there's token burn because that' what they speculate will happen.