This can be closed. Was not aware of the absurd drama that is going on at the Gnome Project regarding this topic. For reference:
- 'Run in terminal' should use the preferred terminal (#338) · Issues · GNOME / GLib · GitLab
- Have a standard way for users to specify which terminal should open .desktop applications with Terminal=true (#54) · Issues · xdg / xdg-specs · GitLab
- Add support for xdg-terminal-exec for handling desktop applications using 'Terminal=true' (!2839) · Merge requests · GNOME / GLib · GitLab