As for the problem of too high transaction fees, Ethereum 2.0 is under development, which is the process of upgrading the Ethereum network to overcome the old disadvantages such as low performance, high transaction costs. However, there are currently a few networks that are considered to be able to compete with ETH like BSC or Polygon, they have great potential in the future, there are quite a few new projects developed on these two networks.
Ethereum's fees are serious problem but still they are leaders in blockchain platform, and they will keep here for long time because no other platform is going to do anything like this even we have few competitors, but they are not working like Ethereum they are much vulnerable to attacks and disruptions.
Ethereum2.0 is in development, so hopefully after this we will have some better feature and affordable transactions fees. Alternative will be in market for better competition, but still it's not going to have any impact on Ethereum. BSC is also in good development and have good impact on gaming blockchain gaming industry.