Is Ethereum losing ground to SOL guys, should I sell?

I read a shitload of crypto things daily, and I stumbled upon a post that compared the 2021 ATH with what happens this year. There, it was written that Solana got a load of liquidity from people that cashed out Eth.

Is it true? I have like 4 ETH that I kept since it was 200$, and I think this is the ATH for Ethereum.

Any help and opinion is welcomed