I'm not an expert but if I were to have some chain analysis software that has both premix A and later consolidated into a larger pool (premix B), it would simply reveal that your coins were linked.

But after the larger pool mix it will once again be difficult to see which TX is yours.

privacy

Best practice | How to consolidate bunch of 100k post-mix utxo

martinbarilik

is there really no way to consolidate and at the same time keep privacy from original premix / deposit wallet ? I feel like that is odd. I mean it make sense in way what you are suggesting but still.