It does not sync with Nextcloud in one direction: from Ubuntu to Cloud storage
I was working on my tasks and updating via my laptop (Ubuntu), expecting they would be there when I restarted the computer. So, I switched off the computer one day and the next day the updates were not in the gnome-todo app, the same place where I edit the changes. So, this tells me that it does not sync at all and it does not store local modifications. This means, I can only edit tasks from my browser or from my phone, where I use Dav, to sync Calendr and Tasks.
But! It does sync if you leave the computer on long enough, which is not enough for a busy schedule where you go to the street and you want to get your tasks updated in your phone.
MAIN COMPLAINS: It does not sync in a reasonable amount of time (too slow), there is no sync button to force sync, there is no settings to configure syncthing frequency.
WHAT I APPRECIATE: the design is really neat, I love the integration with GNOME, it accepts nextcloud, open-source.