This doesn’t happen for me. I tried it in both the Search tab and in the Cmd-F search inside a note’s pane. I select all using Cmd-A and then type, and the entire text field is replaced with the new text. I tried starting with my cursor at the end, or in the middle between words.
Same OS and version. (edit: I tested both Big Sur 11.2.2 and 11.2.3. I can’t reproduce this problem. It works for me.)
(I wondered if maybe this has anything to do with insert mode, but now I don’t even know if MacOS has an insert mode, and I don’t have an insert key to test.)
- Do you have any software installed that manages hotkeys, macros, or snippets?
- Have you tried with all community plugins disabled?
- Does this also happen in a fresh clean vault with no plugins?