Dropbox cloud service is sending various emails to Gnu / Linux users who use this service. The reason for this email is End of support for the Dropbox application for Gnu / Linux with file formats other than Ext4.
This means that all Gnu/Linux distributions and all those that use a format other than Ext4 will not be able to continue using the Dropbox Gnu/Linux application. November 7 is when the official Dropbox client will stop syncing with these types of installations. And although it may not seem harmful or a great change within the operation of the application, it must be remembered that Ext4 are few distributions that use it anymore, giving way to the format Btrfs, Zfs, Xfs or even encrypted partitions that will not be compatible with this. new change in the Dropbox app.
At the moment we only know this information and we do not know what will happen to those that have a format other than Ext4, nor if having this format ensures that the service will continue to be present in Gnu / Linux distributions. On all other operating systems, the Dropbox app will continue to work as usual, which casts doubt on the continuity of Dropbox within Gnu / Linux environments.
It should be remembered that one of the strengths of Dropbox compared to other cloud storage services is that it had a native application for Gnu / Linux it worked fine with Nautilus and any other file manager. This is what made many Linux users will opt for Dropbox and not for other systems to store their files and backup copies.
Personally I do not know what will happen with Dropbox but I doubt that many users change the file system with all that this entails only for an application that has alternatives that can work in Gnu / Linux such as Mega or Google Drive.
So there are few distributions that use Ext4 ... If you say so.
I have only a few weeks of installing OpenSUSE Tumbleweed and dropbox stopped working today, looking for information I found this link.