To change the default browser in Outlook 365, go to File > Options > Advanced, then scroll to “Link Handling” and set “Open hyperlinks from Outlook in” to your preferred browser, like Chrome.
Your Mac comes pre-configured to open specific file types with default apps. Click on a web link, and it launches Safari. Open an email notification, and you're directed to Apple's Mail app. This ...
You can add multiple Google accounts on your Android device. However, it considers the first account you sign in with as the default and uses it to sign you in across various Google apps and services.