>>28455170
Coinbase, like Kraken or Binance, only swap certain coins for their own small fees. Basically you're "in house" and will pay a fee to cash out to a wallet. Otherwise you're more or less just making them move tallies in their own ledger. Uni, or other swap services, are having to actually make a transaction with the entire network as stuff goes from one wallet to another.
>>28454153
Because wrapped tokens are cancer.