[question] split long lines in terminal

[mcepl]

With plain nvim, there doesn't seem to be the way how to make terminal to understand that sometimes one long logical line is still the same although split for display into two screen lines.

In this situation yy in normal mode copies only the visible one line (up to string ":pyt"), whereas gnome-terminal in the same situation

copies whole line.
Now I was told that with spllit-term.vim this problem is fixed and yy copies whole line as well. Is it true? If so, how did you do it? Could this potential fix be carried over to the neovim itself?