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2 years agoIsn’t your computer disk encrypted already?
Otherwise you seem to want jails or sandboxes to protect each app, with access denied by default. That sounds more like Android, or possibly Qubes OS: https://en.m.wikipedia.org/wiki/Qubes_OS
I’ve switched to Kagi for search, and Fastmail for email. Though a bit more difficult to escape Google when you’ve got a pixel 8 pro ;)