Stable Build 83.4.152

Thanks, layolayo , that was really great information!

I told the Dropbox team about your experience, that it's still glitchy in 20.04 .

I told them that I'd like to "elevate" this problem AGAIN, to the next level, beyond where it currently is.

I also suggested that they their team should try it out, on a fresh install of 20.04 , and see if it works for them or not. If it works for them, but not for us, then perhaps there is a subtle installation issue, for them to track down and tell us. 

I also gave them a link to try -- to download a beta from  http://releases.ubuntu.com/20.04/ .

Also, you could try the

$ nautilus --version

command, in 20.04 and I can tell them what the output is.  They didn't tell me to try that this time. I haven't upgraded to 20.04 yet.

You could also try the following, where for me, the dropbox.list file has "cosmic" in it instead of eoan (for 19.10).

$ ls -l  /etc/apt/sources.list.d/*dropbox*
-rw-r--r-- 1 root root 66 Feb 16 23:08 /etc/apt/sources.list.d/dropbox.list

The content of my dropbox.list file is:

deb [arch=i386,amd64] http://linux.dropbox.com/ubuntu cosmic main

What happens if you change "cosmic" in this file, to "fossa" (for 20.04)?  And then you did a sudo apt update and sudo apt upgrade?

Perhaps it will install the correct software then, and work?  I don't know, of course! Hopefully this won't mess up your system too much. You could always change the dropbox.list file back to what it was, hopefully, to restore the previous state.

This didn't help me, on 19.10, but maybe it can help for 20.04?

Anyway, I'll see what they suggest next, and will get back to you!

Thanks for the information on 20.04 !