We have so many blockchains and coins and they don't find use case tron has now number one utilty it's holding number one payment method on tron chain.
Ada dot matic and all the others and ltc....i even can't Understood why we need those ?
Those projects or L1 projects even L2 are creating a more scalable platform for anyone to use. As you can see not all have fast and cheap transactions. So these projects are sprouts giving other users option to pick their project instead of the other. Its like a competition and which one best served will go on top.