So after testing heres the latest and its pretty conclusive.
ISSUE;
-IOS 16 broke all external streaming and downloaded video using official apple HDMI lightening adapters world wide.
UPDATE, some good news
-A year later and still no video on downloads, only audio will sound
—if streaming though both audio and video will now work. Defeats the entire purpose of downloading though.
TESTED USING
-iphone 14 pro max ios 16.7.2
-Offical Apple HDMI lightning and USB-C adapter
-ipad pro, air 4 and air 5
-Tested with exact same repeatable results on all latest streaming apps: Netflix, Amazon Apple + and crave
-multiple working HDMi cables.
CONCLUSION:
Any USB-C device will work as designed and will play both audio and video downloads as well as streaming as expected.
Sadly the official expensive Apple lightening HDMI convector is the sole issue and its controlled by the apple IOS. This is without a doubt a massively huge world wide Apple mistake and its Apples responsibility to fix this a year ago! Why a trillion dollar company cant test for this in an hour like i did is beyond reprehensible. Absolutely ridiculous this being allowed to effect millions of users daily.
Shamefull.