Save commented doc in Dropbox or GDrive

I have a document to which a colleague has added comments - they appear on the right-hand side of the screen with a dotted line and arrow pointing to the area commented on.

When I save to my hard drive, no problem, but if I save to Gdrive, or to my Dropbox folder the comments disappear. Is there a way to do this?

Found the solution on another site - I had to convert to PDF as LO wouldn’t print the comments, or save them when uploaded. Not ideal, but at least I can share the comments with the rest of the team.