No, we have developed our own algorithm for that.
I know you can't guarantee what happens on some other website aka exchange

Let me clarify what I wanted to say with one real life example I heard from our local board recently.
Guy was doing some trading and he was using centralized exchange for this purpose, he accepted coin from other guy on his exchange account and everything was fine in 2021, other guy received fiat money in this trade.
Centralized exchange was used in this case to avoid getting coins that are connected with some hacks, scams, etc, and nothing was wrong in 2021.
One year later in 2022 he gets a letter from authorities that those coins are coming from scam, and in 2023 (two years later) police confiscate totally different coins from this guy.
They make the rules so they can do whatever they want

An unfortunate story that could happen to anyone independently of a coin source, since it directly depends on education and competence of the law enforcement circle performing investigation. However it has little or no relevance compared to benefits that our aggregated pool provides. I will still repeat - we guarantee risk-free coins in the aggregated pool (including considering risks mentioned in your story). Feel free to ask more information via private communication channels where I can provide more details.