UTXO consolidation exposes all the addresses in that transaction as originating from the same entity. If you coinjoin with other users, you can spend UTXOs together without creating links between them: 

bitcoin_beginners

How Does Bitcoin’s UTXO Model Affect Privacy and Transaction Fees?

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UTXO consolidation exposes all the addresses in that transaction as originating from the same entity. If you coinjoin with other users, you can spend UTXOs together without creating links between them: https://stacker.news/items/1521114