it is only network usage in use. won't be much different from ethereum. there are many considerations why use and choose the blockchain network to use for the platform. but seeing that currently, some projects have migrated to the binance network only to be listed on binance DEX. I have also seen several projects that have finally returned to the ethereum network again after previously migrating to the Binance Chain.
Well, Ethereum seems to make it easier for developers to work with than the Binance chain, so they choose to switch back to Etherum.
People find it easier to use Ethereum as it has more wallet applications to accommodate. New Binance chain for everyone and the community. They are only interested in BNB in CZ's CEX, no one is interested in developing something on the Binance chain.
binance only creating that for business they think they can have many dev to support that chain and have the same adoption as ETH platform.
Many developer prefered to use ethereum chain because of easy function of it in and in terms of demand wth platform still the highest demand for creating token even the fees is too high for everyone .