I believe that Ethereum has a fully balanced functionality, despite the fact that in specific cases some altcoins may surpass Ethereum in single parameters. But it is the strong balance of all Ethereum functions that gives an advantage even over bitcoin. The speed of transactions can be taken as an example. Of course, some altcoins provide transactions much faster than Ethereum, but if Bitcoin is the slowest in the cryptocurrency market, then despite this, it occupies an honorable first place in the cryptocurrency market. So in my opinion there is nothing critical with the scalability issue for Ethereum. over time, this issue will be resolved.