Of all the alternative Layer-1s you've chosen the one that has barely any adoption and user activity at all lol. Cardano doesn't even have native stablecoins yet. If there's an alternative L1 that will challenge Ethereum, it would be Solana and the Cosmos IBC ecosystem.
I personally think of something like this:
Ethereum = DeFi
Cardano = dApp
DeFi = Decentralized Finance
DApp = Decentralized Apps
Why do you separate both? They're pretty much synonymous lol.