Option to prevent synchronization

I would like to have a Button, a Checkbox or a similar option to tell Joplin to not try to synchronize my notes now.

Use case:
If I’m on a trip and the target location is not available for the whole day (e.g. different network), I don’t want that Joplin tries to synchronize my notes every “few” minutes, because I already know that it won’t work. When I’m back how, I deactivate that option again to allow synchronization.

I already tried the option “Deactivate” for Synchronization Interval in the options menu. But it doesn’t behave as expected.

If this request exists already, please excuse me, because I can’t find it.

There’s currently no such option.

Am I allowed to open a request issue on github for this?

It’s a known issue so there’s a change there’s already an issue about this on GitHub. But I’m aware of it and would like to implement this some day.

Could you link me to the issue?

As of Joplin desktop versions after 2.4.1 (Changelog) you can now go to the sync settings and select the option "None".

I just tried this and when I set the sync option back to what it was previously (Joplin Server), Joplin desktop had remembered the sync details.