You use drag and drop of selections? I don't think I've ever done that on purpose --- every time I've ever dragged selected text has been by accident, followed by much cursing as I try to fix my mangled document.
Likewise. And the support for DnD of text really hinders usability in tools like Google Docs. If you select a wrong piece of text, it would be so much nicer to just start selecting the correct piece instead of first clearing out the selection elsewhere to avoid triggering drag event.
I used that sometimes while holding ctrl/option for copy-pasting text without altering the clipboard, is actually a feature I missed in Atom and VSCode as well.
I'd turn it off system-wide if I could!