If you’re here, there’s still hope for the internet
Don’t let it fall
(I use onedrive but same principle applies)
Mainly just that, there’s no way to access files except thought the vault software. Other apps, third or first party, can’t use them. I can’t see them online or use any web documents/shared documents. It basically turns cloud storage into a syncing app, but I can just use syncthing for that.
The OG piped basically. Does the same thing. You can try an example here
As with all your other questions, it depends on your Launcher