What other note apps can show all incomplete tasks from any note in one view?

I’d love to use Apple Notes to keep things simple, but I’m looking to use a notes app that shows all my incomplete tasks / to do checkboxes in one view. I’ve discovered that Dropbox Paper does this, but the app is otherwise pretty clunky and annoying, not to mention that files are saved in a proprietary format, which doesn’t seems ideal to me. I just can’t figure out a good way to search for this, so hoping to tap some first hand knowledge here.