You may have noticed a setting on Android called Private DNS. It's on by default, and you're best off leaving it that way.

Firefox has long supported profiles, but its new management system makes it's much easier to create and switch between them.

Mozilla Firefox is about to introduce an easy-to-use Profile manager years after other browsers got this capability.

Joplin is a powerful open-source note-taking and to-do application available on Android (as well as Windows, macOS, Linux, and iOS). It uses Markdown for notes and supports attachments, tags, ...