I don't like Ethereum, it has become very centralized and they developed all these L2s to take money instead of solving scaling on L1. Solana is so much better and faster, the only advantage Ethereum has is that it is older. But that advantage won't last because it is not as good as Bitcoin, so this will not help it retain its lead over other altcoins.
Do upgrades to the ecosystem really matter much when the fees are so high most people cannot affordably use ETH or any of the tokens?
They don't. Sometimes they lower fees, but it is very little and too late. Many people got hurt for using ETH.