Notion is a great tool and I recommend it as a solid "all-around" personal-wiki / notetaking tool.

That being said, the fact that it's electron-based means it's not always as snappy as I'd like it to be when I want to quickly capture a thought -- sometimes the "page" has to reload, even when I'm using the desktop app. I also notice that like slack, it suffers from the same in-line text formatting woes, which can be infuriating if you're trying to escape out of a code block or something.

Still, it's a good tool, and this is a neat feature I'm excited to try.