I have one bookmark that will copy to clipboard the current page URL + an anchor to the highlighted text:

    javascript:(function(){navigator.clipboard.writeText(`${window.location}#:~:text=${escape(window.getSelection().toString())}`);%20console.log("copied!");%20})();

For example it will give you this: https://news.ycombinator.com/item?id=47888337#47888930#:~:te...