Sifon supports Sitecore Commerce of version 9.x and 10.x (XC). While performing backups and restore Sifon also suggests processing XC assets and distinguish them from each other on multi-instance installations.
Please note: that has been successfully tested on the default XC installations of various versions and may not functions well on highly customized Commerce powered solutions. Please you a feedback link in order advise me on such cases so that I could resolve Sifon work these issues out in the future versions.