I have now released version 1.0.15.0 of DFFS for the Modern SharePoint with a few bugfixes, some changes and a few new features. Please note that this version has one potential breaking change (if you address items by id in rules or custom js)
Read more and get your license over at SPJSWorks.com
Post any feedback in the forum here: https://spjsblog.com/forums/forum/modern-dffs/
Alexander