A new server-side update to Google Maps has been observed to allow the user to add their own notes to their items in this app's Lists facility. Users can also now re-arrange said items to their own liking, or in (for example) alphabetical order. These tweaks may make these Lists more handy and productive.
https://www.notebookcheck.net/Google-Maps-introduces-the-ability-to-add-notes-to-its-Lists-feature.428465.0.html