I suspect someone is already playing the idea of implementing support for it, but if NTFS is any indication, it'll take a long time before anything stable exist

I suspect someone is already playing the idea of implementing support for it, but if NTFS is any indication, it'll take a long time before anything stable exists. There's also less motivation for implementing this filesystem in Linux at this point. It's available only on Server and Windows 10 Workstation (at least for creating -- I believe Win10 is able to read/work with ReFS in any version). It's not feature-complete yet[0], missing some important ones like deduplication. It's quite new, so there isn't a lot of it in the wild, reducing the need to make a compatible implementation for interoperability (probably the #1 reason for making a compatible version; #2 being to have a cool new filesystem with features that don't exist in currently available offerings). And being proprietary, it will almost certainly be a very difficult thing to write -- much like NTFS is/was. [0] Not a show stopper - NTFS evolved over time, as all filesystems seem to.