This is what I asked fixedfloat, and their answer is decentralized trading! According to your understanding of decentralization, do you think they are?
Now you bring FixedFloat into the discussion. What's next? Binance? FixedFloat is neither non-custodial nor decentralized regardless of what its customer support claims. They either don't know what they are talking about or they are simply lying to you. Either way, it's again irrelevant to the topic of discussion.
Decentralization and (non) custody aren't matters of opinion where you can think that something is and another person thinks it's not. A service is either custodial or non-custodial and the same goes for centralized vs decentralized.
I want to hear OP's answers to the questions I asked. I am not going to reply to any of your future off-topic questions in this thread.