Main differences between (current state of) Ethereum and Solana is that Solana is a cheap and performant blockchain while Ethereum is an infrastructure primitive that enables you to build literally any verifiable system including cheap and performant blockchains.

this looks critical, but wasn't meant to be, just my take on the discussions happening rn. having a focus is a good thing, much easier for people to understand than explaning the chaotic complexity of ETH ecosystem.

also Solana is building everything that Ethereum has for rollups and other infrastructure to treat it as a settlement / base layer in the future.