patch 9.0.0943: pretending to go out of Insert mode when Esc is received Commit: https://github.com/vim/vim/commit/d330e8422d1c4670a241ce8ebde4c37918538dce Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 24 20:23:24 2022 +0000 patch 9.0.0943: pretending to go out of Insert mode when Esc is received Problem: Pretending to go out of Insert mode when Esc is received has side effects. Solution: When the kitty keyboard protocol is enabled expect Esc to always be the start of an escape sequence.

" gvimrc for test_gui_init.vim

if has('gui_motif') || has('gui_gtk2') || has('gui_gtk3')
  set guiheadroom=0
  set guioptions+=p
endif