As the browser is by far my most used app, I find that bookmarking the current tab and describing the task with no more than a few words or even as little as a few chars, to be a good way to keep track of what things I need to do soon. For things I would get to later or whenever I feel like it, I’ll put them in Firefox’s “Boookmarks Menu” or “Other Bookmarks” folders, and have lots of folders consisting of Reddit posts and searches about different topics.
Yeah sort of. I have a “to-read” folder of anything I’ve been meaning to read (believe it or not, it constantly grows and rarely shrinks…) and I use my top-level bookmarks bar for stuff to look at, usually cool FOSS projects I stumble across and want to try out. I don’t use it the exact way you talk about though, eg I usually don’t edit the bookmark name but the webpage title is usually descriptive enough for me.