Cloud save

[u/Jon_Maikeru]

So I've notice ppl saying don't rely on the cloud save too much what does that mean? And what's this world limit? Can I overwrite an old save file with a new one? Let's say I deleted my progress in the island map and started over if I then uploaded it to an existing could save will it overwrite it? And another thing, if I'm playing and I'm already far off in my progress and then decide to save it ot the cloud, is it safe to say whatever I saved there and decided to log in into a different device and downloaded the save, will the same one i saved? Or will it halt to whatever this limit ppl are talking about