Either one doesn't seem to worry about funds being reversed after the trade has been completed, and the sellers are left to harm and losses.
That's not a flaw with Bisq or RoboSats, that's a flaw with the payment method.
If your payment method that scores poorly on the May scale of monetary hardness, then RoboSats (which by design provides a new robot for each trade) is most definitely not going to be a good platform for trading.
What is needed is street-level trading of bitcoin, just like how Bureau de change / foreign currency conversion dealers operate. This can happen with Bisq and RoboSats, but using the in-person / face-to-face cash trading payment methods. Inconvenient? Sure. Much less so then being defrauded.
As far as P2P trading platofrms that are free of identity verification / KYC, there is also HodlHodl and LocalCoinSwap.
https://p2pcripto.com