Found 800 thsd. answers for 'linux debian update-alternatives vim as text editor'.
https://www.cyberciti.biz/faq/howto-install-vim-on-ubuntu-linux/
https://www.cyberciti.biz/faq/tag/vim-text-editor/
https://www.cyberciti.biz/faq/tag/vim-editor/
https://fossbytes.com/9-best-text-editors-linux-programming-2017/
https://askubuntu.com/q/920147
https://askubuntu.com/q/891928
https://askubuntu.com/q/330718
https://blog.tian.it/vim-as-default-editor-in-debianubuntu/
https://viewsby.wordpress.com/2012/01/07/update-default-editor-for-sudoedit-to-vim/
https://viewsby.wordpress.com/category/vim/page/2/