Exactly, I cherry picked that JoinMarket tx for the demonstration because it is very small. Here's a very large JoinMarket tx where it's more difficult to determine the set of inputs linked to the users who created the bc1q...f2yxq and bc1q...xvdwu change outputs: https://mempool.space/tx/63b28f5e17e03fef27795e1ea7fbf821e2d5f072098ffcef3d27b8b2d23ca719
This is a really interesting tx
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