http://monerotoruzizulg5ttgat2emf4d6fbmiea25detrmmy7erypseyteyd.onion/nb-no/2021/09/20/post-mortem-of-decoy-selection-bugs.html
Note that having distinct implementations of the decoy selection algorithm is not ideal. Ideally, all wallets would conform to the same spec of the decoy selection algorithm to ensure transaction uniformity, so that transactions on-chain cannot be tied to a particular wallet implementation.