I personally do not know of any application requiring this. I went for the fix as I am currently new to the codebase and assumed parity with windows on small things could be a start.
Would that it were so, but unfortunately we resist pretty heavily making changes that nothing needs.
I didn't know about DOSATTRIBS, I will look into it. Thank you.
It should be a simple matter of tweaking XATTR_ATTRIBS_MASK to include the new flag. The problem is that doing this isn't exactly free. The reason we don't store all attributes already is because the xattrs take up extra space in the file system, and we only want to store attributes for files where they're actually necessary. If no application cares then we don't want to do anything. -- https://gitlab.winehq.org/wine/wine/-/merge_requests/9861#note_126512