I haven't read this but Juraj is usually right on
Discussion
A bit on tracing Monero transactions
https://youtu.be/-sTT84Up7FY?si=6SS2_wvCk3aDgMh3
I've written a bit about Cashu as well:
https://juraj.bednar.io/en/blog-en/2025/03/18/cashu-bitcoin-freebanking/
thanks!