Yep, it's working fine for us as well. A build we had uploaded on 30th Aug 2021, had the dsym UUID being correctly generated.
Xcode organiser also now works properly for builds after 30th Aug 2021.
Old builds which were affected still don't work on xcode organiser. For old builds we are patching the dsym using one of the blog posts linked above, and we are able to symbolicate crashes for them on Instabug.