[good8675309]

I found a solution. I downloaded my Vault folder, installed Cryptomator, moved my files into it and now it synchs the encrypted files to Dropbox.

[nitro721]

That's what I did as well. I'm now using a Cryptomator vault within Dropbox. Ironically, Dropbox dropping their vault has made my vault more secure now than it was. ¯\_(ツ)_/¯