You can use Notes on iCloud through your iPhone, iPad, or Mac, or in a browser using iCloud's website, to create, edit, and ...
To block emails on iCloud, you'll need to use the iCloud website — you can't use the Mail app on your iPhone or iPad.
Word’s testing a new default that saves fresh documents to OneDrive with autosave active. It’s convenient and good for recovery, but it also nudges more files into the cloud unless you opt out.