Upload to cloud?

[Matombo]

When I load an edited title pack the game asks me: "The title pack is not stored in the cloud. Do you want to upload it?"
Where is this actually uploaded? And is only the packed file or the unpacked files uploaded as well?

[Electron]

You will find the answers to both questions here: Title Pack Auto-update
However, I am not sure if the information there is still up to date.

[Matombo]

Ok if i understand it correctly: If i upload to cloud, everyone else who has the pack installed gets an update. (So only relevant if i have actually published the pack anywhere)