It works but a step by step tutorial on how to use it is completely needed. Even on the Ant Video Downloader official website they can do a good tutorial (a detailed one) they should do one.
How to use it?: You have to use Firefox (won't work on Librewolf), install the AVD native app on windows and then install the addon Ant Video Downloader on Firefox. Then go to settings of the addon and allow sending data to the native app cookies on privacy settings. After all that, open or refresh the website with the video and now you can find the video info in the addon icon, select the resolution and download it.