The short answer, as of this date (2025-04), is "no".
If a cut/paste workflow, is what is desired, DrMoishe Pippik's comment probably is as good as it gets in suggesting a path forward. If it's fairly certain that tab characters aren't used in any of the data in the cells, one could:
- Select the region of interest in Calc.
- Right-click and 'Copy'
- Open a text editor (e.g., Emacs) and paste, as tab-separated data, into an empty buffer in the text editor.
- Search/replace to convert the tab characters to comma characters.
- Then select all and paste the now-CSV-formatted data into the intended destination.