In Sublime Text and Visual Studio Code moving cursor with Ctrl-Right puts it behind the word. For example, if cursor is just before bbb using Ctrl-Right will put it behind bbb, Kate 24.08.3 puts it before ccc:
aaaaaa bbb ccc
aaa bbb ccc
aaaaaa bbb ccc
By splitting selection to multiple lines Sublime Text like motion makes it possible to select empty space between bbb and ccc by using Ctrl-Shift-Left and Ctrl-Shift-Right.
You might find that they get more attention if you file the separate features as separate issues. I understand that these two things go together in your example use-case, but in code, they’re probably entirely unrelated.