All of them are fake. Despite the “instant” and “non-custodial” and “no-kyc” branding, these services are not decentralized in terms of liquidity sourcing. They rely on centralized exchanges.
They use those buzzwords to attract and trap users who don't bother researching and verifying the claims made by a service before using it. By the time they realize that they have been lied to, the funds have already been frozen and KYC is needed for the funds to be unfrozen. Very criminal behavior from some of these service providers!