Hello,
One of the reasons I use Dropbox is that as a graphic designer I need to store files on the cloud. I also like to use macOS for better optimization with my workflow, however I am now thinking two things:
1) either I switch back to Windows since the Dropbox integration is much smoother in my experience
2) switch to another cloud service
Let me know if there are any updates for better Dropbox integration with macOS, including being able to see thumbnails of online-only files, including .psb files (Photoshop large files).
Cheers