You can unsync Google Chrome from your devices and clear your browsing history and other data from them.

Microsoft is getting more aggressive about insisting that you use its OneDrive cloud for your Windows 11 and Microsoft 365 files. If you'd prefer to keep those files out of the cloud, follow these ...

You can delete contacts from iCloud by unsyncing your devices from the cloud, and manually deleting several or all contacts on the iCloud website.