There is no reference to GNOME calculator in that page.
Given the extraordinary claim, please link better proof. I cannot imagine GNOME calc phoning home, unless you crashes and you have manually enabled debugging telemetry post-installation.
Given the extraordinary claim, please link better proof. I cannot imagine GNOME calc phoning home, unless you crashes and you have manually enabled debugging telemetry post-installation.
It is at the bottom of the page I linked to, under "Application Firewall". There is even a screenshot.
Let's not dilute the original meaning. Phoning home means sending telemetry and other usage data to its creator and associated third parties, and this data exchange is not at all necessary for the program to do its job.
If the calculator wants to pull exchange rate information, all it needs to do is ask. Anything else should be presumed as shady in the current environment.