I believe that ETH will reclaim it's glory back once gas fee issue is solved, there is also a big difference between BSC and ETH that will still make many prefers ETH, that's the fact that BSC is Centralized and ETH isn't.
for now bsc is the best even though bsc is decentralized but because of low transaction fees bsc is widely used by crypto users now. many users don't see the name factor of the platform but prefer one that provides low and fast transaction services. maybe if later eth transaction costs come back low then many users will come back to using ethereum.