If you were a developer on the Zorin OS team for one day, what would you change?

Firefox was the Default but the Dev's decide to switch to Brave because of Mozilla's changing Terms of Use:

This is available in the Pro Version of Zorin.

The Thunderbird Situation is a bit complex because of the Ubuntu Base waht Zorin uses. these is no APT Packages available what could be installed by default. The only Alternatives would be Snap or Flatpak.