After you start a title on Netflix, you can bring up the stats window by pressing CTRL+ALT+SHIFT+D, which would be a 100% reliable metric to judge functionality. You will see the actual streaming resolution as well as several other stats, such as audio playback to verify. Keep in mind that it will take Netflix a short time to buffer to HD resolution when you first start watching; this is normal. If you have one of the 1080p presets chosen and it is available on the title you are watching, it will match closely to the screenshot below taken today.

This addon is working as intended, as you can see from over 1,000 users and several ratings. It was also updated yesterday to reflect the most recent Netflix updates. It would be greatly appreciated if you could verify via Netflix's built-in stats in case there is a bug or a simple misunderstanding; please consider updating your very low rating.

1080p+ playback 8/1/2024
https://imgur.com/a/wUiRslU

If you have further questions or need any help, please do not hesitate to reach out!
support@netflux.me