That is still trust, and you need to trust Bisq software is doing what it says, unless you know the to read the code yourself.
You are being disingenuous here.
Bisq, Electrum, Bitcoin Core, Linux, Tor. All of these things are open source and can be independently reviewed and verified. If you cannot do it yourself, then the trust you have is now decentralized among the entire community instead of in a singe person or entity,, since you can be fairly certainly if any of them tried to do something malicious then it would not even be merged. zkSNACKs coordinator can do anything they like with your data and not only can you not stop it from happening, but you don't even know it is happening.
You can't say that everyone should (rightly) use an open source Linux distro over closed source Windows spyware in one post, and then immediately say that using open source bitcoin software is no better than using closed source Wasabi spyware in the next post.