So far there is no native way of moving the cursor up or down a display line in insert mode.

Request

Allow cursor to be moved one display line up or down natively in insert mode. Using either a new command or a new keybind like i_ctrl-g g j, i_ctrl-g g k that can be mapped to.

Alternatives considered

1. <c-o>gk, it works properly, but it triggers ModeChange and invokes other auto commands.
2. <cmd>normal gk<cr>, it works most of the time but not when the cursor is on the last char of the line.