Yes, but the OP is asking how you buy sats from someone on robosats without connecting your true identity to a direct transaction with the other party. Since you dont know who you are transacting with, it could be a fed, which is a problem. Liquid transactions may be the only way to do it because they are untraceable, so I think L-USDT is not linkable back to you, though I'm not sure L-USDT is as secret as L-BTC.
An option could be to do a lightning<->onchain swap with robosats because technically the lightning transaction is opaque. However you would need to assume the originating lightning node isn't connected directly to robosats (it could be) and robosats doesn't share its transaction info (theft or a gun can break a lot of promises), so I don't know there is any guaranteed way to keep your KYC'd funds' origin secret from the other robosats party.
