It looks like you’re talking about this thread, right?
I wonder how those “style” tags get in there? It seems not to be any software I’ve used, since I’ve never seen one in my library.
IAC, the advice given in that thread to use a third-party tag editor that can handle batch operations and delete all the “style” tags seems pretty good. Yes, it’s some work, but really, once you get things set up, it shouldn’t take much time. (And as it says in the other thread, back up first!)
By design, any editing you do in Roon won’t affect embedded metadata, so in this case, recourse to a third-party tag editor is the best way to tackle this problem.