On the other hand I cannot stand it when copy/paste preserves formatting. The last thing I want when I paste some text somewhere else is fonts, colors, hyperlinks, and numbered lists coming along with it. 90% (or more) of the time I just want the plain text.
Same. But there are a few rare instances I do want formatting preserved.
I've resorted to using PowerToys on Windows for this, it has a little utility called Advanced Paste. Win+Shift+V brings up a little modal and you can choose to paste as plain text, markdown, json, and a bunch of other functions, or you can give it your OpenAI API key and have ChatGPT format clipboard contents for you.
