I'm wondering how quickly edits are synced across shared notebooks when using Joplin Cloud -- does it essentially work like when editing regular notes across several devices or does Joplin Cloud sync have some real-time features in place that reduce the risk of sync conflicts between different particitpants of a shared notebook? Thanks!
As far as I understand there is no difference between how Joplin Cloud works and any of the other self hosted solutions.
It's indeed the same as for any other sync target - the app synchronises within a few seconds when you make edits to a note. Otherwise it does a full sync (getting data from other devices) every x minutes, as defined in the configuration.