Hi all! Thank you so much for the feedback and your patience over the years. I’m excited to let you know this usability issue will be addressed in the upcoming Extension Redesign.
In the update, search terms will filter the “Auto-fill suggestions” you see in the screenshots, as well as “Favorites” and “All items”. If the item you want to fill, does not appear in the suggested section (based on its URI matching), you will still be able to access the auto-fill action from the 3 dot “more” menu.
Thank you again for taking the time to share your feedback.