Good job missing the point completely. None of these things are problems for me, now, a computer professional who spends my entire day in a POSIX terminal. What about the people who don't have that advantage?
For the text editor? For general help, they will probably google "gnome text editor help" or "gnome text editor docs" like I just did, which returns >80% results for the new application despite it not existing for very long.
I also tested this in a private window in case google is tailoring this to my, generally more tech heavy than normal, history. It immediately came up with this general rundown/intro to the editor: https://itsfoss.com/gnome-text-editor/ which covers installation and even how to view the list of keybindings.
For more specific features, they'd probably google something like "gnome text editor $FEATURE".