I have been using BSC network for a long time. BSC seized a good opportunity and took advantage of it. ETH cannot be used with these fee rates. I hope they fix this issue in the future.
There seems to be a bit of something wrong with what you're saying because BSC hasn't been around for a long time in cryptocurrency, even though almost 80% of new projects are using BSC at this point but that doesn't mean BSC has been around for a long time in cryptocurrency.
BSC is indeed a newcomer when compared to ETH, but BSC has the advantage that it has a relatively stable and cheap gas fee
With that advantage, many new projects use BSC to make their smart contracts, which makes BSC better for now and becomes the toughest competitor of ETH which has too expensive fees in my opinion.