If wasabi is zerolink then why there is no equal outputs as outlined in the zerolink protocol? No postmix tools after the fact. No segregation of accounts. Do you even know why there is doxxic change? For equal outputs to exist there will be change and coordinator is blinded (soon decentralized) It doesn't know the links between a coinjoin's inputs and outputs. That was one of the major goals of the zerolink framework, that nopara wrote but ironically Wasabi doesn't do equal input and output "zerolink" mixes so they are not equivalent. doxxic change is completely unaffected by mixes since it has never been mixed. Every SW user knows exactly what to do with that doxxic change so there is no combining with other doxxic change that didn’t come from the same source.

The Tx0 makes all your UTXO's share a tx hash, which prevents them from mixing with each other, preventing an "accidental" Sybil attack from entering a large amount of BTC, Samourai separates the coordinator fee in the Tx0 no fee flagging in the fee addresses. Every communication between Alice and the coordinator is made with a different Tor identity. It's transparent for the coordinator if one of the messages is actually sent by Bob, so when Alice sends her clear output to the coordinator it's made with a Tor identity different from the Tor identity used to submit the input and the blinded ouput. Who is using this Tor identity is transparent for the coordinator. It’s two separate Tor identities. This was even in the original zerolink docs IIRC.

So once coins are mixed, they are segregated and can't "accidentally" make their way back to unmixed section of wallet. You have to manually generate a receive address and send from postmix to get utxos back there, which obviously you shouldn't do. This is the only way to have true ZeroLink, where a user can't spend mixed and unmixed together. SW doing ZeroLink original spec. Simultaneous denominated pools, max entropy mixes for the number of inputs/outputs, never 2 or more same previous tx in a same mix, and unequal amount coinjoined spends post-mix if the user chooses.

Here is an impartial opinion

https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-December/017542.html