Yes that's right, Binance continues to be popular, and it looks like it will beat Ethereum for 3 years and then bitcoin 6 years, they are supported by everything to become the next ethereum.
According to what you said, i think it's too modest to call BNB the next ethereum, it should be the next bitcoin, after all, BNB will surpass BTC in 6 years.
I have not really tried using BSC chain even the tokens that I need to swap are still ERC20. I wouldn't really say BNB is the new ETH until probably most of the bounty campaigns are using BSC chain.
The only time I used BSC address was there was an airdrop which they require BSC on the dapp I'm using. I'm not even sure if the token is worth storing in my wallet.