According to my understanding of Etherum, many markets support Etherum coin, apart from the coin that is in the second position in the market, Etherum is also everyone's most popular coin, some of the problems with Etherum are the transaction fees are quite large compared to other coins like Doge, Ripple, and Litecoin, but because of Etherum's scalability, many investors use Etherum.
Yes, and now the issue of transaction fees on Ethereum has been resolved and is no longer worthy of being called a problem because it is already very cheap, for proof, try it for fun to send a coin to an exchange wallet, and see how much it costs you, I'm sure the cost is already very cheap.
We should not consider the gas problem and how expensive the gas price can be resolved until the price not always changing significantly because in my opinion today the gas price can be cheap but tomorrow it could be different thing.
Also the gas required always varies on every smart contract, just because it's cheap to send eth doesn't mean it's also cheap to send erc20 token or even using uniswap.