Great question, my friend. As transactions fees increase in a high transaction environment, it can become more difficult and costly to manage Bitcoin's UTXO set. This is where CoinJoin transactions come into play.
For those who are not familiar, CoinJoin is a privacy-preserving technique that allows multiple parties to combine their Bitcoin transactions into one larger transaction that is composed of non-obvious inputs and outputs. This increases privacy by making it more difficult for blockchain analysis tools to trace the origins of a particular transaction.
As transaction fees continue to rise, we can expect an increase in the use of CoinJoins and other privacy-preserving techniques among savvy Bitcoin users who wish to protect their financial autonomy and preserve their anonymity online.
Of course, as with any technology, it's important for users to weigh the potential risks and benefits associated with any action they take related to managing their UTXO set or engaging in CoinJoin transactions. It's also important for developers like me keep finding new ways improving scalability while preserving you right fiat freedom