In these days, projects are coming and calling they are Ethereum Killer! Really! Near, Cardano, Polkadot all are calling themselves an Ethereum Killer. It isn't easy. Nowadays Ethereum fees are high. Though people didn't move from Ethereum. Those who called themselves Ethereum Killer now dying.
Nothing new! We had so many similar topics here... NEO, Stellar, BNB... and Ethereum is surviving and making progress! I don't know how to call this kind of topics, it's FUD and spam in the same time! But actually for people who have some knowledge about crypto they find this kind of topics silly! And if projects base their marketing on "next
BTC" and "next Ethereum" are most likely short term projects!
I can't say anything about Polkadot, I see that project name around, but I didn't read more about them and I didn't invest! For now, I will stick to my Ethereums!