When the cursor is set to : shape: block color: match current character blinking enable and move the cursor to a character ( shell or with an editor - vim or nano) The character behind the cursor also blinks Looking at the changelog, I don't see this as a new feature or expected behavior
A possibly relevant merge request was started @ https://invent.kde.org/utilities/konsole/-/merge_requests/802
I can confirm that patch fixes the bug (tested applying it for konsole 22.12.1).
Git commit d0d1dcda8187596dc63001de7e75b25fe57e3da7 by Kurt Hindenburg, on behalf of Matan Ziv-Av. Committed on 23/01/2023 at 21:55. Pushed by hindenburg into branch 'master'. When the cursor is blinking and off, do not reverse text color M +1 -1 src/terminalDisplay/TerminalPainter.cpp https://invent.kde.org/utilities/konsole/commit/d0d1dcda8187596dc63001de7e75b25fe57e3da7