BSC is still a target for new projects to use because of its low cost and consistent speed, which is very much needed for a new project. The BSC will continue to be used if there are no other competitors who cannot provide the same thing and other conveniences. Until now, there are many alternatives, but BSC is still an idol, although maybe even if the ERC20 has a low cost, the BSC will still be used and other competitors may be eroded.
Of course with BSC, the popularity of BNB is increasingly visible because the transaction fees are very cheap and safe for us to use, so far there are very many investors who have used the network and as you said if later the BSC network does not have any problems, it will still be used although the competition will be even greater, and the erc20 network is the biggest competition.