So far, I didn't notice anything that someone have access to the wallet or a transaction happen without my knowledge.
This doesn't mean trustwallet is secure. Everything can happen in the future.
If are saying that you were able to send your funds from the android coinbase wallet, I am guessing it was a noncustodial wallet where you own the private keys hence they don't know or don't care how you spend your funds.
There's still the probability that they track your transactions even if you use their non-custodial wallet.
They can link your transactions and your addresses with your IP address.