I'm not sure if this is a new feature of MixTum, I thought I knew MixTum has supported it for a long time or maybe I've seen this feature on some Mixer services.
It's not a new feature, I remember it from at least a year ago. I don't know when it has been present, Mixtum has existed since 2018 and there have certainly been a lot of upgrades in the meantime.
It certainly makes Mixtum more unique compared to other competing services.
However, Mixtum has the option of free testing
https://mixtum.io/?mix=freeIt is possible to mix Bitcoin for testing purposes, commission-free, the amount must be exactly 0.001 BTC
Now is a good time for that, because the network fee is also low 8-11 sat/vB
