No way to disunify/unify 'New Terminal' during runtime
Some years back (2013/2014 maybe?) the 'New Window' and 'New Tab' menu items were combined into a single 'New Terminal' item.
This apparently met with resistance from users, so Fedora and recently also Ubuntu have chosen to build Gnome terminal with DISUNIFY_NEW_TERMINAL_SECTION to restore the old behavior.
This unfortunately leaves users of those distros, like myself, who actually prefer the simplicity of 'New Terminal', with no practical way to restore that functionality (beyond rebuilding the package with the compile-time switch reverted).
After hearing me out, the Ubuntu maintainer suggested I file a bug here, asking to turn the compile-time option into a Gsetting so that the behavior could be more easily adjusted per user preferences.
So that is what I'm asking here.