Yes, many ethereum users are moving to Solana and BNB. The ethereum network has many weaknesses with high gs fees which burden users. but for big investors they still believe in ethereum, this is what is difficult for Solana and BNB to beat ethereum
Because of the high gas fees of ethereum, that's more reason investors are leaving the ethereum blockchain for another blockchain because they can continue to be transacting with high gas fees.
The high gas fees is the main problem I find in ethereum. I find it discouraging to be transacting in the ethereum blockchain, I prefer to use other blockchain network like Solana, BNB or polygon because of their low transaction fees when compare with ethereum.