google drive – Online WebDav Apps

I found which does in general what I’m looking for: hosting MS Office documents on a webserver which are directly accessible on Windows and Mac to edit within the installed desktop application and directly save it back.

The have a preview for images. However, what I am looking for is a (more modern) WebDAV web app with thumbnail/preview for all file types (PDF/Word/Excel/…) with the look and fell of OneDrive or GoogleDrive.

Are there any alternatives available that can do that?