The hot wallet example that you choose is just not good since they are all custodial wallet which doesnt have privacy or full control to the wallet.
Note that there are two coinbase wallets. One of them is custodial and the other one is non-custodial.
Of course, even the non-custodial coinbase wallet should be avoided. Because it's close source and we don't know how the keys are generated and whether they have the access to the keys or not.